Jont Openheart (born Jonathan Mark Smith Whittington, 17 August 1973) is an English singer-songwriter. First achieving prominence as a slow left-arm spinner for Middlesex County Cricket Club, he then shifted focus to poetry then to music. Mainstream attention followed after his song "Sweetheart" was featured on the soundtrack to the 2005 US comedy film Wedding Crashers and two tracks from his 2008 album Supernatural were featured in season 5 of the US medical drama Grey's Anatomy.