With her hair back combed into a scruffy up do and her eyes caked in make-up, Lily Allen was the ultimate rock chick at the NME Awards last night.

The singer arrived at the event in a 60s-inspired cream dress, before going for an all-black look as she took to the stage with electro-rock duo, The Big Pink.

But following a night of performing and then an aftershow party, a sleepy Lily was seen leaving the bash, slumped on her boyfriend Sam Cooper's shoulder in the back of taxi.

Rock chick: Lily went for an all-black look with dark smokey eyes and messy hair as she performed on stage at the NME awards in London last night

Clearly the busy night, which saw her win an award, had taken its toll on the Brit Award-winning singer.

The boys may have won big at the Shockwaves NME Awards - but that didn't mean Lily was ready to step out of the limelight.

The 24-year-old star was given the Giving It Back Fan award for her Twitter treasure hunt last year.

Fan friendly: Lily shows off her pretty cream dress as she arrives at the event

That's a wrap: The singer was honoured for being good to her fans, seen right leaving looking a little tired

Lily used the social networking site to leave clues for fans to where she had hidden free tickets to her shows throughout her tour.

It was then time for a quick costume change before she joined ex-boyfriend Robbie Furze and his band The Big Pink for a surprise performance for the guests at the event which took place at the O2 Academy Brixton.

Earlier, she and former Guns 'n' Roses guitarist Slash presented her new friends Muse with the award for Best British Band.

Time for bed: After her busy night a sleepy Lily Allen leaves the afterparty

Strong girl: Lily picks up Akiko Matsuura of The Big Pink after their performance

Former Guns 'n' Roses guitarist Slash and Lily on stage together

The rockers got to know Lily when they both performed at the Big Day Out festival tour of Australia and New Zealand last month.

Muse were also given the gong for Best Website and frontman Matt Bellamy was also named Hottest Male for the second year running.

Leicester rock band Kasabian also won two awards - Best Album and Best Album Artwork for West Ryder Pauper Lunatic Asylum.

Sexy: Muse's Matt Bellamy scooped the Hottest Male award while the band picked up Best Website and Best British Band

Godlike Genius: Paul Weller is honoured before taking to the stage for a special performance

The first award of the night went to La Roux for their song In For The Kill, which beat off stiff competition from Dizzee Rascal's Bonkers and You've Got The Love by Florence and the Machine, to win the award for Best Dancefloor Filler.

La Roux's singer Elly Jackson said: 'Sometimes when you don't win over other people, when you know how hard you've worked and that you didn't have any help it does get to you, I'm not going to lie to you, it does.

'It does, I just wanted a small accolade and this is enough for me.'

Both the blondes: Singers Kesha and Ellie Goulding

Ladies in black: La Roux's Elly Jackson (L) whose band won Best Dancefloor Filler and Marina from Marina and the Diamonds

The event, which was hosted by former Pulp singer Jarvis Cocker, also gave former Jam star Paul Weller the Godlike Genius Award.

Special performances on the night came courtesy of winners Kasabian, who performed with Mighty Boosh star Noel Fielding.

Biffy Clyro were joined by the hotly tipped Marina and the Diamonds, whose debut album The Family Jewels is tipped chart highly on Sunday.

The Specials, who were honoured for their outstanding contribution to music, performed a couple of songs, as did Courtney Love and her band Hole.

Rock chicks: Courtney Love (L) and Radio 1 DJ Jo Whiley

Party guests: Former Guns 'n' Roses guitarist Slash and DJ Mark Ronson

The Specials performed some of their classic hits

The Shockwaves NME Awards 2010 winners