Katy Perry has helped to deliver a baby.

The 'Part Of Me' hitmaker tweeted her excitement at helping out during a home birth on Wednesday (26.02.14), saying she'd had a ''miracle of a day''.

The 29-year-old singer wrote on Twitter: ''Finally you can add 'helps delivers babies in living rooms' to my resume! It's been a miracle of a day... Auntie Katy aka Stylist Auntie (sic)''

Although Katy failed to mention exactly who she was helping, her sister Angela Hudson was revealed to be pregnant last year, spurring speculation that Katy had a hand in delivering her niece.

Katy's happy news comes in the wake of her rumoured beak-up with John Mayer, whom she reportedly split from after 18 months together.

The couple are alleged to have called time on their relationship because of Katy's hectic upcoming tour schedule.

A source said: ''She's stressed about the tour, they've been fighting. It is probably for the best, because she is going to be on tour for forever. Of course this happens all the time, I can't keep track anymore. But for now they are done.''