Katy Perry will make her first public appearance since her split from Russell Brand this week.

The songstress is set to co-host the GiveLove charity event on Friday January 27, which is being held at the 1 OAK Las Vegas club at the Mirage Hotel & Casino.

The charity develops temporary housing solutions and improved sanitation systems in Haiti, following the devastating earthquake that ravaged the country in 2010.

It was co-founded by Patricia Arquette, who will also be at the event.

Katy is not scheduled to perform at the function, but she expected to hand a cheque on behalf of J. Molinari Jewelry to GiveLove founders Patricia and Rosetta Getty.

It will be the first time Katy has stepped out at a public event since her marriage breakdown. She was due to appear at the People's Choice Awards earlier this month, but pulled out of the awards ceremony just days before.

The singer is said to be in turmoil following the breakup - which saw Russell filing for divorce from her following a 14-month union late last year.