Question: What English singer-songwriter co-hosted the 2015 MMVAs?

full_context: Document 1: 2015 MTV Europe Music Awards: The 2015 MTV EMAs (also known as the MTV Europe Music Awards) were held at the Mediolanum Forum in Assago, near Milan, Italy, on 22 September 2015. This was the third time the awards have taken place in Italy, second time Assago has been the host city, and the first time that the awards have been held in October. The awards was held in the same venue as the 1998 MTV EMAs. On 30 September 2015, it was announced that singer Ed Sheeran would host the awards, along with actress Ruby Rose.
Document 2: One (Ed Sheeran song): "One" is a song recorded by English singer-songwriter Ed Sheeran for his second studio album, "x" (2014). Sheeran wrote the song immediately after releasing his debut album, "+" (2011). It marked the last occasion wherein Sheeran wrote about his former girlfriend, who inspired all the romantic compositions on "+". "One" was produced by frequent collaborator Jake Gosling and its music was based primarily on acoustic guitar. Critics were generally positive toward the song; it was noted for its guitar-driven sound and Sheeran's use of falsetto.
Document 3: Sing (Ed Sheeran song): "Sing" is a song by English singer-songwriter, Ed Sheeran. It was written by Sheeran and Pharrell Williams, who also produced it and provided uncredited background vocals. The song was released on 7 April 2014, serving as the lead single from Sheeran's second studio album, "×" (2014). The song became Sheeran's first UK number-one single and also topped the charts in Australia, New Zealand and Ireland. It also peaked at No. 13 on the US "Billboard" Hot 100.
Document 4: + (Ed Sheeran album): + (pronounced "plus") is the debut studio album by English singer-songwriter, Ed Sheeran, released on 9 September 2011 by Asylum Records and Atlantic Records. The album marks Sheeran's commercial breakthrough, having previously released five EPs independently. Jake Gosling and Sheeran produced the majority of the album, with additional production by American hip hop producer, No I.D..
Document 5: Photograph (Ed Sheeran song): "Photograph" is a song recorded by the English singer-songwriter, Ed Sheeran, for his second studio album, "×" (2014). Sheeran wrote the song with Snow Patrol member, Johnny McDaid, who had a piano loop from which the composition developed. After recording several versions with other producers, Sheeran eventually solicited help from Jeff Bhasker; the collaboration generated a version that Bhasker further enhanced for months. The ballad derives its music primarily from an acoustic guitar, piano and programmed drums. With visually descriptive lyrics, it discusses a long-distance relationship inspired by Sheeran's own experience of being away from his then-girlfriend while he was on tour. IDA
Document 6: 2009 MuchMusic Video Awards: The 2009 MuchMusic Video Awards were held in Toronto, Ontario at MuchMusic's headquarters on June 21, 2009. Along with the MuchMusic VJ's, on April 16, 2009, it was confirmed on the MuchMusic website that the Jonas Brothers would co-host the show. The show featured performances by The Black Eyed Peas, Billy Talent, Lady Gaga, Jonas Brothers, Alexisonfire, Kelly Clarkson and others. The artists with the most nominations were Nickelback and Danny Fernandes with five nominations each. Nickelback won the most awards with 3 awards.
Document 7: 2015 MTV Video Music Awards: The 2015 MTV Video Music Awards were held on August 30, 2015. The 32nd installment of the event was held at the Microsoft Theater in Los Angeles, California, and hosted by Miley Cyrus. Taylor Swift led the nominations with a total of ten, followed by Ed Sheeran, who had six., bringing his total number of mentions to 13. Swift's "Wildest Dreams" music video premiered during the pre-show. Cyrus also announced and released her studio album "Miley Cyrus & Her Dead Petz", right after her performance at the end of the show. During his acceptance speech, Kanye West announced that he would be running for the 2020 U.S. Presidential Election. Taylor Swift won the most awards with four, including Video of the Year and Best Female Video. The VMA trophies were redesigned by Jeremy Scott.
Document 8: 2010 MuchMusic Video Awards: The 2010 MuchMusic Video Awards were held in Toronto, Ontario, Canada at MuchMusic's headquarters on June 20, 2010. Along with the MuchMusic VJ's, it was confirmed on the MuchMusic website that Miley Cyrus will co-host the show. The artists with the most nominations are Drake and Hedley with six. For the 1st time since 2001, Fuse televised the "MMVAs" in the United States. Hedley and Justin Bieber tied for most wins at the "2010 MMVAs" with 3 wins each.
Document 9: X (Ed Sheeran album): x (pronounced "multiply") is the second studio album by English singer-songwriter, Ed Sheeran. It was released on 20 June 2014 in Australia and New Zealand, and worldwide on 23 June through Asylum Records and Atlantic Records. The album received positive reviews from music critics. It was an international commercial success, peaking at No. 1 in fifteen countries, while topping both the UK Albums Chart and the US "Billboard" 200. "x" also reached the top 5 in seven other countries and was the best selling album of 2014 in Australia, New Zealand, Ireland, and the United Kingdom. Five singles were released from the album: "Sing", "Don't", "Thinking Out Loud", "Bloodstream" (a collaboration with Rudimental), and "Photograph".
Document 10: Jake Gosling: Jake Gosling is an English music producer, songwriter, remixer, manager, and publisher best known for his work with artists such as Ed Sheeran, The Libertines, James Bay, Shawn Mendes, All Time Low, One Direction, Christina Perri, Paloma Faith, and Wiley. He received the ASCAP award 2014 as a writer for hit song "Lego House" and was named "Music Week"' s Producer of 2012 after work on Sheeran's album "+", as well as being the predominant producer on x (Multiply), Paloma Faith's "Fall to Grace", and One Direction's "Up All Night" and "Take Me Home", in which he produced Number 1 UK and worldwide hit single "Little Things". Gosling has remixed under the pseudonym Sketch Iz Dead for Lady Gaga, Timbaland & Nelly Furtado, Keane (band), Keri Hilson, and Far East Movement. Gosling runs his own recording studio Sticky Studios in Surrey. Gosling and Sarah Liversedge run a joint venture publishing company called "The Movement London Limited". Gosling is signed as a songwriter to BDi Music Limited and is a full member of the Music Producers Guild. He was nominated at the 58th Annual Grammy Awards for Record of the Year with "Thinking Out Loud". He has also won the Brit Award for 'Album of the Year' in 2015 with Sheeran's x. Gosling has been nominated twice at the Brit Awards for Producer of the Year. He was nominated at the 2015 Grammy Awards for Best Album with x.
Document 11: Ed Sheeran: Edward Christopher Sheeran, {'1': ", '2': ", '3': ", '4': "} (born 17 February 1991) is an English singer-songwriter, guitarist, and record producer. He was born in Halifax, West Yorkshire, and raised in Framlingham, Suffolk. He attended the Academy of Contemporary Music in Guildford, Surrey, as an undergraduate from the age of 18 in 2009. In early 2011, Sheeran independently released the extended play, "No. 5 Collaborations Project". After signing with Asylum Records, his debut album, "+" (read as "plus"), was released on 9 September 2011 and has since been certified seven-times platinum in the UK. The album contains the single "The A Team", which earned him the Ivor Novello Award for Best Song Musically and Lyrically. In 2012, Sheeran won the Brit Awards for Best British Male Solo Artist and British Breakthrough Act.
Document 12: 2008 MuchMusic Video Awards: The 2008 MuchMusic Video Awards were held in Toronto, Ontario at MuchMusic's headquarters on June 15, 2008 with the rain-soaked Red carpet arrivals that started at 8:00pm ET, but was slightly delayed by rainstorms that soaked the crowds and artists, the awards started at 9:00 and ended at 11:00. The show featured performances by illScarlett, Flo Rida, Girlicious, Sean Kingston, JabbaWockeeZ, Simple Plan, the first performance by New Kids on the Block in 15 years and others. The most nominated artist was Hedley with six nominations in which they won four awards. This was the first MMVA to have an afterparty, which was broadcast exclusively on MuchMusic.com, and featured Bedouin Soundclash.
Document 13: 2014 Much Music Video Awards: The 2014 Much Music Video Awards (MMVAs) was held on June 15, 2014 outside the Much headquarters in downtown Toronto. Kendall Jenner and Kylie Jenner served as co-hosts for the show.
Document 14: 2011 MuchMusic Video Awards: The 2011 MuchMusic Video Awards was held in Toronto, Ontario, Canada at MuchMusic's headquarters on June 19, 2011. The awards were aired on MuchMusic, CP24, E!, MuchHD and Fuse. Along with the MuchMusic VJ's, it was confirmed on the MuchMusic website that Selena Gomez will host the show. Lady Gaga and Justin Bieber tied for the most awards won with 2 each.
Document 15: 2015 Much Music Video Awards: The 2015 Much Music Video Awards (MMVAs) were held on June 21, 2015 outside the Much headquarters in downtown Toronto. Ed Sheeran served as co-host for the show.
ground_truth: Ed Sheeran