record label deal. Later career In 1980, after a five-year hiatus, he returned to his old record label, CBS. The first single, "What's in a Kiss?", reached No. 19 in the UK in 1980 and No. 21 in Japan. It was his first UK top 20 hit in five years. Following the release of his subsequent 1980 and 1982 albums, Off Centre and Life & Rhymes, and due in part to the then-ongoing MAM court case, O'Sullivan released no new material between 1983 and 1986. Apart from the single "So What?" in 1990 and a compilation album in 1991, Nothing But the Best, O'Sullivan was absent from the charts until another compilation album, The Berry Vest of Gilbert O'Sullivan, returned him to the UK top 20 in 2004. O'Sullivan is also noted for his role in bringing about the practice of clearing samples in hip hop music as a result of the 1991 court case Grand Upright Music, Ltd. v. Warner Bros. Records, Inc., in which he sued rapper Biz Markie over the rights to use a sample of his song "Alone Again (Naturally)". He won 100% of the royalties and made sampling an expensive undertaking. O'Sullivan has continued to record and perform into the 21st century. He enjoys particular acclaim in Japan. His album A Scruff at Heart was released in 2007, featuring "Just So You Know". On 14 July 2008, O'Sullivan released "Never Say Di". He appeared at the 2008 Glastonbury Festival, and played London's Royal Albert Hall on 26 October 2009. On 26 August 2010, O'Sullivan announced that he had joined Hypertension, a record company whose artists have included Leo Sayer, Chris DeBurgh, Fleetwood Mac and Gerry Rafferty. His album Gilbertville was released on 31 January 2011; it featured "All They Wanted to Say", which dealt with the 2001 attacks on the World Trade Center, and his single "Where Would We Be (Without Tea)?". On 19 July 2011, O'Sullivan played live on the BBC Radio 2 Ken Bruce Show. On 26 August that year, the documentary Out on His Own was broadcast by BBC 4 (before by Irish RTÉ). In March 2012, the compilation album Gilbert O'Sullivan: The Very Best Of – A Singer & His Songs entered the UK Albums Chart at No. 12. 2015 saw Gilbert re-emerge on Irish and BBC radio and television. He toured Ireland beginning of June, and on 8 June 2015