recording sessions titled Adolescence leaked onto the Internet, and Blay actively encouraged her fans to download it. 2010–11: Adulthood Blay announced the change of her stage name to CocknBullKid in June 2010 and released the song "CocknBullKid" as a free download. Her first single with Moshi Moshi/Island, "One Eye Closed", was released in November 2010, and she opened for Marina and the Diamonds and Kele on their respective tours in October and November. The follow-up single, "Hold on to Your Misery", was released in January 2011, and third single "Asthma Attack" followed in April 2011. These releases preceded her debut album, Adulthood, which was recorded in London, Paris and Stockholm with production from Liam Howe, and includes contributions from Gonzales, Peter Morén (of Peter Bjorn and John), and Joseph Mount. It was released in April 2011, and a fourth and final single, "Yellow", was issued in August 2011. Spin magazine and The Guardians Michael Cragg named Adulthood one of the best albums of the year. Blay promoted Adulthood with support slots on UK tours by Janelle Monáe (from February 2011), Duran Duran (May 2011), and Patrick Wolf (October and November 2011). She collaborated with several other artists during 2011; featuring on the track "In Doubt" by Black Devil Disco Club, and on The Shoes' song "Cliché" (from their album Crack My Bones) and their remix of Wolf Gang's "Dancing with the Devil" (alongside Mz. Bratt). Blay co-wrote material for Nicola Roberts' solo album Cinderella's Eyes (2011), but her tracks did not make the final cut of the album. 2012–present: Solo and songwriting work Blay recorded "Doing It Wrong", the theme tune for the BBC Three television series Some Girls, which premiered in 2012. The same year she featured on Niyi's "Ur No Good" and the single "Never Let Go" by Rowdy Superstar, with whom she formed a side project called X&Y. She co-wrote girl group Neon Jungle's 2013 debut single, "Trouble", which reached the top 20 on the UK Singles Chart. Blay has also been working on a second solo album, according to her publisher Downtown Music Publishing. In 2015, Blay (credited as CocknBullKid) was featured on the Boxed In track "Lo Life". In April 2016, Blay's songwriting collaboration with Little Mix on their song "Hair", released from their 2015 album Get Weird, was released as an official single, featuring vocals from Sean Paul, and is classed as the biggest