Big Brother shows off presenters Brian Dowling and co.

Are you ready for a Big Brother summer explosion? Fans will be treated to a double helping as Channel 5 prepares to broadcast a celebrity and non-celebrity edition.

Big Brother's presenting crew will be: Brian Dowling, Emma Willis, Jamie East and Alice Levine.

Brian Dowling is Big Brother to the core; after winning the second series, Brian was asked to present SMTV Live - making him the UK's first openly gay children's TV presenter. He then became a presenter on ITV's late night interactive gambling show The Mint and reality TV shows such as Cirque de Celebrite and Hell's Kitchen.

He was voted Ultimate Big Brother winner in 2010, and is now the face of Big Brother on Channel 5.

Emma Willis was the face of the reality show's online coverage when it was on Channel 4. She also hosted off-shoot Big Brother's Little Brother. Now that it has moved channels, Emma is hosting the sister show, Big Brother's Bit On The Side.

Jamie East is a fixture of Big Brother's Bit On The Side. The founder of gossip website Holy Moly is known to be pretty outspoken, which always makes for an interesting viewing experience.

Alice Levine is also a co-host of Big Brother's Bit on the Side; spunky and feisty, she's a favourite with Big Brother fans.