Ahead of tonight’s live launch, we chart CBB’s craziest moments

It's back! Television's most widely renowned and controversial television show is making a triumphant return to our screens on Channel 5 this evening. 

And that means that a new batch of celebs are being brought into the craziness and well, we can't wait. 

This year's line up looks set to raise the roof as the cast includes Kim K's BFF Jonathan Cheban, Strictly professional Kristina Rihannof, reality star Gemma Collins, socialite Nancy Dell'Ollio, Geordie Shore's Scotty T as well as Ex on the Beach star Megan McKenna. 

As we wait impatiently for the soothing tones of Emma Willis on tonight's launch show, we have put together some of the craziest and most controversial moments from the Celebrity Big Brother house. 

1) The racism controversy 

Probably the most shocking scenes from the CBB house ever was in 2007 when the late Jade Goody along with Jo O' Meara and Danielle Lloyd faced racism and bullying allegations directed toward Bollywood star Shilpa Shetty. 

After a number of negative comments from the trio including nicknaming the Indian actress as "Shilpa poppadom", the show received it's greatest number of viewer complaints ever recorded at over 45,000. 

2) Perez Hilton v Calum Best 

While Perez managed to tick off practically everyone in the house, it was his run in's with Calum Best that really got chin wagging. 

In one particularly nasty row, Perez used such obscene words that many viewers described the comments as verbal sexual harrassment (the above vid is definitely NSFW). 

3) Leo Sayer break out of the house 

2007 was quite the year for controversy and Leo Sayer added a particularly comedic moment when he decided to quit the show after refusing to wash his own underpants. 

He then made a break for it and attempted to stage his own release and it was pretty epic. 

4) Jeremy Jackson kicked out of the house 

American actor Jeremy was given the boot after he pulled open the dressing gown of Ex on the Beach star Chloe Goodman. 

We say good riddance! 

5) Tila Tequila also gets the boot 

Last year's housemate Tila was axed from the house after only two days after viewers expressed outrage over her participation in the show. 

The anger was caused by pro-Hitler comments the pint-sized reality star had made in a post on her blog. As seen in the video above, Tila was already gearing up to be a controversial and cheeky character.