Before I start, I must say... I am a massive GA fan. BUT that doesn't mean I have a biased opinion over them. Here's why...
They have been going good and strong for 7 years.
Unlike a certain rival girl 3-piece, they haven't changed their lineup since they've been around.
They've had 21 singles, 20 of which have reached the top ten.
They've released five albums, two of which have been UK number ones, two live albums, two compilation albums and one greatest hits album.
Out of them has come 4 number one singles, 4 number two singles and 15 top ten's.
They have had five tours and have been a supporting act for Coldplay in 2009 on their Viva la Vida Tour.
They have an amassed fortune of £25 million by May 2009.
Guinness World Records lists them as 'Most Sucessful Reality TV Group' as well as holding the record for 'Most Consecutive Top Ten Entries in the UK by a Female Group' in the 2008 edition.
They have sold over £10 million records worldwide.
They have made a cameo apperance on the first St Trinians Movie, as well as singing the soundtrack and Kimberley and Nicola have made an apperance on Brittannia High.
They have hosted their own show 'The Girls Aloud Party'.
They have published an autobiography called 'Dreams that Glitter - Our Story'.
In 2007 they signed a £1.2 million deal to promote Sunsilk. In the same year they also sealed a contract with Samsung.
In 2008 they promoted Kit Kat Senses, which also sponsored their Tangled Up Tour later that year.
Some of their many celeb fans include Coldplay, Jonas Brothers, Gabriella Cilmi, U2 frontman Bono, Emma Bunton, Geri Halliwell and Arctic Monkeys.
Some awards they've amassed over the years include
Best Single: Sound of the Underground, No Good Advice, The Show, Wake Me Up, Biology, Something Kinda Ooooh, Call the Shots, The Promise
Best Newcomer, Band of the Year (2004), Favourite UK Album (What Will The Neighbours Say?), Band of the Year (2005), Best Female Singer (Cheryl Cole), Best Band (2007), Most Fanciable Female (Cheryl Cole), Best British Group (2008) and Band of the Year (2009)