Taylor Swift thinks her ex-boyfriends were too ''competitive''.

The country singer - who has dated Hollywood hunks Jake Gyllenhaal, Joe Jonas, Taylor Lautner and John Mayer - claims her showbiz relationships have all ended because her jealous exes couldn't handle her being more successful than them.

Donald Trump has warned Katy Perry against John Mayer.

The billionaire businessman has bizarrely taken to offering relationship advice, telling the 'I Kissed a Girl' singer she should be wary of John, with whom she has had an on/off relationship since the summer.

Taylor Swift ''fears'' she will never have a relationship which lasts forever.

The 22-year-old singer - who has previously dated John Mayer, Jake Gyllenhaal and Joe Jonas - insists her mind is constantly filled with thoughts of both ''faith and disbelief'' about romance and she worries true love will not be part of her future.

Miley Cyrus thinks Nick Jonas' new song is ''pretty blatant''.

'The Climb' singer is marrying actor Liam Hemsworth and agrees it could be more than coincidental her former boyfriend Nick Jonas' new track, 'Wedding Bells', is about a lost love who is set to wed.

Taylor Swift thinks it's ''fun'' to torment ex-boyfriends on her songs.

The 'We Are Never Ever Getting Back Together' hitmaker is known for singing about her former lovers on her records and says she doesn't feel bad about it because they deserve it for the way they've treated her.

Taylor Swift has no desire to be one of Hollywood's party girls.

The 22-year-old singer - who is dating Conor Kennedy and previously romanced Jake Gyllenhaal and John Mayer - admits she's not a huge drinker and usually prefers to sip on sweeter non-alcoholic beverages.