Question: The "A Team" singer collaborated with which Swedish singer on "So Good" in 2017?
Context: Linda Norrgård Pritchard (born 19 May 1983) is a Swedish singer and professional dancer, who has worked with Magnus Uggla and Ace of Base.  As a student she attended the Adolf Fredrik's Music School in Stockholm.  She participated in "Idol 2008" where she got to the qualifying round but was then eliminated, although she was considered one of the favourites.  During the summer of 2009, Pritchard participated in Allsång på Skansen as a dancer for Magnus Uggla and she also choreographed a video for Ace of Base.  Pritchard also accompanied Ugglas on his revue tour.  Pritchard's first single "Fast Car", originally recorded by Tracy Chapman, was included in the compilation album "Absolute Music 61".  She had previously sung backing vocals for Celine Dion and for the Swedish singer Velvet. 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. Lars "Lasse" Lönndahl, born 19 August 1928, is a Swedish singer and actor, born in Stockholm.  He is considered the most well-known Swedish singer of the 1950s and 1960s with nicknames including "The Swedish Frank Sinatra" and "World's Oldest Teenager".  Even though by the mid 1970s his career had slowed down, he is still considered arguably Sweden's most popular singer of all time and was long a very popular figure in media. Allt jag ville säga is the third studio album of the Swedish singer songwriter Ulrik Munther released on Universal Music Sweden.  The album was Munther's first one, with the lyrics written in Swedish.  He collaborated with the Swedish novelist Jonas Gardell who wrote the lyrics meanwhile Munther composed the music. "Good Lovin" is a song recorded by Swedish singer Benjamin Ingrosso.  The song was released as a digital download in Sweden on 25 February 2017 and peaked at number 11 on the Swedish Singles Chart.  It is taking part in Melodifestivalen 2017, and qualified to the final from the second semi-final on 11 February 2017.  It was written by Ingrosso, Louis Schoorl, Matt Parad, and MAG. "Don't Let Me Be Yours" is a song by Swedish singer Zara Larsson.  It was released on 12 May 2017, as the seventh single from Larsson's second studio album, "So Good" (2017).  The song was co-written by Ed Sheeran, who additionally provided backing vocals. Andreas Per Kleerup, known professionally as Kleerup, is a Swedish record producer, songwriter, multi-instrumentalist, drummer, and member of the Swedish group The Meat Boys, from Stockholm, Sweden.  His first mainstream collaboration was as the producer of fellow Swedish singer Robyn's number one UK single, "With Every Heartbeat", also included on Kleerup's self-titled debut album.  He has also collaborated with Cyndi Lauper, Neneh Cherry, Lykke Li and Loreen.  In 2009, he won the Swedish Grammis for "Newcomer of the Year", "Composer of the Year" and "Producer of the Year". "So Good" is a song by Swedish singer Zara Larsson featuring American singer Ty Dolla $ign.  It was released on 27 January 2017, as the fifth single from Larsson's second studio album, "So Good" (2017). S.O.S. is a Swedish English language hit for Swedish singer Ola Svensson written by Tony Nilsson, taken from his third album "Good Enough", also appearing in "Good Enough - The Feelgood Edition".  The hit credited to just Ola was a #1 hit on the Swedish Singles Chart on the chart dated 22 November 2007, staying a total of 16 weeks in the charts including 6 weeks in the Top 5.  Selling over 10,000 copies, the single was certified Gold by the IFPI. Towe Jaarnek, born 13 June 1965, is a Swedish singer.  At the Swedish Melodifestivalen 1991, she performed the song "Ett liv med dej", which finished 2nd.  In 1992, she recorded a duet with the Swedish singer Peter Jöback.  The song was "More Than a Game", which was the official song for the 1992 European Football Championship, which was played in Sweden.  Her sister Carina Jaarnek (1962-2016) was also a singer.
Answer: Zara Larsson