Myleene Klass alleges her ex, Graham Quinn, cheated before their 2011 wedding, claims he denies.

Myleene Klass, a British TV presenter and former member of the group Hear'Say, claimed her ex-boyfriend Graham Quinn cheated on her with a celebrity before their 2011 wedding. Quinn denies the allegations, and his friends have defended him. Klass and Quinn separated in 2013, and Klass revealed the claims in a recent podcast, though she has not seen her children with Quinn for years.