They always say success is the best revenge, and revenge is sweet for Lady Gaga. The 'Bad Romance' singer appears on the cover of the new Cosmopolitan, and Gaga admits that one pleasant aspect of her impressive rise to fame is proving wrong an ex who never thought she'd make it.

"I had a boyfriend who told me I'd never succeed, never be nominated for a Grammy, never have a hit song and that he hoped I'd fail," she tells Cosmo (via Huffington Post).

"I said to him, 'Someday, when we're not together, you won't be able to order a cup of coffee at the f***ing deli without hearing or seeing me.'"