Question: What English singer-songwriter co-hosted the 2015 MMVAs?
Context: "Seasons" is the third single by English singer-songwriter Olly Murs from his fourth studio album "Never Been Better" (2014) and was released on 27 March 2015.  The song was co-written and co-produced by OneRepublic frontman Ryan Tedder.  Murs announced on his Twitter account that "Seasons" would be the third single from "Never Been Better" on 10 February 2015. Philip Jeays (born Philip Harris on 24 June 1962) is a British singer-songwriter.  He writes and performs songs in a style close to the tradition of French chanson but in the English language.  His main influences are Belgian singer-songwriter Jacques Brel and English singer-songwriter and poet Jake Thackray. William Derek Drake (born 7 February 1962 in Chelmsford) is an English musician, keyboardist, pianist, composer and singer-songwriter.  He is best known as a former member of the cult English rock band Cardiacs, whom he played with for nine years between 1983 and 1992.  He has also been a member of The Sea Nymphs, North Sea Radio Orchestra, Nervous, Wood, Lake of Puppies and The Grown-Ups, as well as pursuing a career as a solo artist.  He is a distant cousin of the English singer-songwriter Nick Drake. The x Tour (pronounced "multiply tour") was the second world concert tour by English singer-songwriter and musician, Ed Sheeran, in support of his second album, "×" (pronounced "multiply").  The tour began in Osaka, Japan on 6 August 2014, and continued through Europe, the Americas, Oceania and Asia until 12 December 2015, where the tour ended in New Zealand.  Sheeran planned 179 shows.  In June 2015, the singer announced a would be filmed during the tour's three sold-out dates, 10–12 July 2015, at 90,000-person capacity Wembley Stadium. The I Am Tour was the third headlining concert tour by the British singer and songwriter Leona Lewis.  It was launched in support of her fifth studio album, "I Am" (2015).  The tour was announced on 11 September 2015 with a run of fourteen dates across Great Britain.  It began on 21 February 2016 at the Liverpool Empire Theatre and concluded on 11 March 2016 at the Plymouth Pavilions.  The leg also included two nights at the London Palladium.  The English singer-songwriter Philippa Hanna served as the support act, and the English singer-songwriter Joss Stone joined Lewis on stage as a special guest for the final show of the tour to perform a cover of "Sisters Are Doin' It for Themselves" by Eurythmics and Aretha Franklin. 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. 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. Christopher James Hardman (26 August 1990 – 23 March 2015), known by the stage name Lil' Chris, was an English singer-songwriter, actor, and television personality.  He came to prominence in 2006 after appearing on the Channel 4 series "Rock School", which saw KISS vocalist and bassist Gene Simmons make a rock band at Lil' Chris' school.  Later that year he released the single "Checkin' It Out", which charted at number 3, and a self-titled album.  In 2008 he hosted his own series, "Everybody Loves Lil' Chris".  He took his own life in March 2015 at his home in Lowestoft after a period of depression. "Terrence Loves You" is a song recorded by American singer and songwriter Lana Del Rey for her album "Honeymoon" (2015).  It was released as the album's first promotional single on August 21, 2015.  Written by Del Rey and Rick Nowels, the song has been described as "hypnotic", with Del Rey singing over piano, strings, and a "moaning" saxophone.  The song contains an interpolation of the song "Space Oddity" by English singer-songwriter David Bowie from his eponymous second studio album.  Del Rey stated that the song is her favorite from "Honeymoon", describing it as "jazzy". James Michael Bay (born 4 September 1990) is an English singer-songwriter and guitarist.  In 2014, he released his single "Hold Back the River", which has been certified platinum, before releasing his debut studio album "Chaos and the Calm" (2015).  The album went to number one in the UK and number 15 in the US.  In February 2015, Bay received the Brit Awards "Critics' Choice" award.  At the 2016 Brit Awards he received the award for Best British Male Solo Artist.  Bay also received three nominations at the 2016 Grammy Awards, for Best New Artist, Best Rock Album, and Best Rock Song.
Answer: Ed Sheeran