Katy Perry and Russell Brand were married for 14 months before announcing they'd split

Katy Perry abandoned her karaoke session in posh London club Mahiki on Saturday to avoid bumping in to estranged husband Russell Brand.

The singer, accompanied by an entourage of around 30, was partying in a private room at the Mayfair venue when she heard whispers comedian Russell could be on his way.

'Rather than risk and awkward run-in, Katy didn't take any chances and ordered everyone to move to to a club in Chelsea instead,' a source tells Metro.

Earlier in the evening, Katy had gate crashed a hen do, happily chatting and drinking with the group of girls.

'Loved meeting you last night, made my hen do even more memorable!' Tweets the bride-to-be to Katy.

'Congrats to you!' replies Katy, 27.

Russell, 36, announced his split from Katy at the end of last year - and he's already rumoured to have moved on with artist Oriela Medellin Amieiro.

But Katy's not got too much to worry about, as Now's learnt that Baptiste Giabiconi, 22 - the world's highest paid male model - appears to have snagged Katy, as the pair were all lovey-dovey as they left a five-star hotel in Paris recently.

Read more about Katy Perry's love life in the latest issue of Now magazine dated 19 March 2012 - out now!

11140%7C00001c7ce%7Ce36f_wk12-Cover.1-gi

SEE PHOTO GALLERY Russell Brand and Katy Perry - a love story in pictures>>

SEE PICTURES Katy Perry Style File>>

TWITPIC Katy Perry kissing a kangaroo at Sydney Zoo>> 

NEW PICTURES Katy Perry and Russell Brand dress down for day out in New York>>

SEE PICTURES The Celebrity Split 2011>>