Pixie Lott hates her debut single.

The 23-year-old singer ''can't bear'' having to perform 'Mama Do (Uh Oh, Uh Oh)' - her 2009 breakthrough track - though she insists she is grateful the song put her on the path to success.

She said: ''I can't bear singing 'Mama Do'. It was my first song and I'm so grateful for the success it brought me, but I must have sung it a million times now.''

The blonde star admits she pursued many routes to find fame, including auditioning for TV talent shows, and is ''glad'' she suffered so much rejection.

She said: ''I'm glad I got rejected. When I was younger, I auditioned for adverts, TV shows, even dance shows at my school that I didn't get, but it's never smooth all the way through. Rejection toughens you up.''

Pixie is happy in her relationship with Oliver Cheshire, but tried to imagine they had split to inspire songs on her new self-titled album.

She told LOOK magazine: ''Oliver has brought out so many feelings in me. He makes me so happy, but I've imagined what it would be like if we broke up - awful - and it inspired some of the ballads on the album, like 'Break Up Song'.''