Question: who made their debut single "hey Mami" and  had records released by a co-founder of Trekky Records?
Context: "Hey Mami"/"Play It Right" is a single by Sylvan Esso, issued as the lead single from the band's eponymous debut album.  The A-side, "Hey Mami", is the album's opening track; while the B-side, "Play It Right", is the album's ninth track.  It is the only single the band released on Trekky Records before they moved to Partisan Records. American singer Miranda Cosgrove has released one studio album, two extended plays, two soundtracks, six singles, and three promotional singles. Cosgrove's debut as a recording artist began with the "iCarly" theme song "Leave It All to Me".  The song features Drake Bell was released as a single in December 2007 and peaked at number one hundred on the "Billboard" Hot 100.  In June 2008, Columbia Records released the "iCarly" soundtrack, which featured four songs performed by Cosgrove, peaked number twenty-eight on "Billboard" 200.  The second single "Stay My Baby" failed to reach charts.  In December 2008, a cover of the holiday song "Christmas Wrapping" was released to promote the hour-long special "Merry Christmas, Drake & Josh".  On February 3, 2009, Cosgrove released her first solo recording, the extended play About You Now, exclusively on the iTunes Store.  The single of the same title, "About You Now" reached number forty-seven on the Hot 100 in January 2009, becoming her most successful single to date.  To promote the 2009 animated film "Cloudy with a Chance of Meatballs", Columbia Records released a promotional single entitled "Raining Sunshine". The Adult Net was a British indie pop band formed by British-based American singer and guitarist Brix Smith in 1985, while she was a member of The Fall.  The group initially included other several other members of The Fall, including Simon Rogers, Craig Scanlon and Karl Burns.  The group issued four singles in 1985/86, with Scanlon departing after the debut single, and Burns leaving a single later.  In 1988, the Smith/Rogers duo recruited former Smiths members Craig Gannon, Andy Rourke and Mike Joyce to fill in the line-up, but by the time the group recorded their only album in 1989, Rogers, Rourke and Joyce had all left.  The final Adult Net line-up was a quartet of Smith, Gannon, former Blondie member Clem Burke and then-current The The member James Eller.  After the band's 1989 debut album, "The Honey Tangle", failed to chart, their label Fontana Records released them in 1990, and the group disbanded. "Hey Mama" is the debut single by EXO-CBX, the first official sub-unit of the South Korean boy group EXO.  It was released on October 31, 2016 by S.M. Entertainment as the title track of their debut extended play "Hey Mama! ".  The Japanese version of the song was released on May 24, 2017 along with their Japanese debut EP "Girls". "Whatever U Like" is a song by American recording artist Nicole Scherzinger, featuring rapper T.I..  The duo, along with Sean Garrett and Polow da Don, composed the song for Scherzinger's planned debut studio album "Her Name Is Nicole".  Interscope Records released "Whatever U Like" as Scherzinger's solo debut single on July 30, 2007. Mami Kawada (川田 まみ , Kawada Mami , born February 13) is a Japanese pop singer who is signed to NBCUniversal Entertainment Japan and is a member of I've Sound, a musical group which produces soundtracks for "eroge" (erotic games) and anime.  Born and raised in Sapporo, Japan, Kawada made her musical debut in 2001 after being discovered by her music teacher Eiko Shimamiya with the release of the song "Kaze to Kimi o Daite".  She released her first single, a split-single with musician Kotoko, in 2002, and her first solo single was released in 2005.  Her first album, "Seed", was released in 2006.  She first performed overseas in Taiwan in 2007 and later appeared at the Bangkok Comic Con in Thailand in 2014. The discography of Japanese singer Mami Kawada consists of four studio albums, one compilation albums, two video albums and sixteen singles.  Kawada debuted as a singer as a part of the I've Sound anime and game soundtrack production group, beginning to release music for game and anime soundtracks from 2001.  After signing with Geneon Entertainment, Kawada released her debut single "Radiance" in 2005, a split single also featuring fellow I've Sound musician Kotoko's "Chi ni Kaeru (On the Earth)".  Kawada released her debut album "Seed" in 2006. Sylvan Esso is an American indie pop duo from Durham, North Carolina formed in 2013.  The band consists of singer Amelia Meath (Mountain Man) and producer Nick Sanborn (Megafaun, Made of Oak).  They made their debut with the single "Hey Mami" and released their eponymous debut album on Partisan Records on  12, 2014 (2014--) , which reached No. 39 on the "Billboard" 200.  Since then they have released three further singles and toured internationally. Will Hackney is an American musician and co-founder of Trekky Records.  He has contributed to many North Carolina indie rock and folk bands, including Lost in the Trees, Midtown Dickens, Bowerbirds, Mount Moriah, and Loamlands.  Hackney is a multi-instrumentalist, known for playing mandolin, guitar, organ, cornet and many other instruments for his various projects.  He co-founded Trekky Records in 2001 with Martin Anderson, later releasing records by artists including Lost in the Trees, Phil Cook and Sylvan Esso. The discography of the Pet Shop Boys, an English electronic/pop music duo, comprises 13 studio albums, four compilation albums, two live albums, four remix albums, one extended play and 55 singles.  The duo's debut single, "West End Girls", was first released in 1984 but failed to chart in most regions.  However, the song was entirely re-recorded in late 1985, and this newly recorded version became their first number-one single, topping the UK Singles Chart, "Billboard" Hot 100 and Canadian Singles Chart.  Parlophone Records released the duo's debut album, "Please", in the United Kingdom in March 1986.  The album peaked at number three on the UK Albums Chart and was certified Platinum by the British Phonographic Industry (BPI).  It also peaked at number seven on the "Billboard" 200 in the United States and was certified Platinum by the Recording Industry Association of America (RIAA).  The following summer they released "It's a Sin", the lead single from their second album, "Actually".  The single became another UK number one and also reached number nine in the US.  This was followed by "What Have I Done to Deserve This? ", with Dusty Springfield, which peaked at number two in both the UK and US.  In the summer of 1987 the Pet Shop Boys recorded "Always on My Mind", a cover of the Brenda Lee track, and it became their third UK number-one single over Christmas 1987.  This was followed by another UK number one, "Heart" in spring 1988.  The album "Actually" was released in September 1987, peaked at number two in the UK and was certified three-times Platinum by the BPI.
Answer: an American indie pop duo