Melanie Chisholm wants to prove she can party harder than the rest of the Spice Girls.

The 40-year-old star will be attending her former bandmate, Victoria Beckham's, 40th birthday party later this year, along with the rest of the Spice Girls gang, and she's looking forward to seeing who will still be standing at the end of the night.

She said: ''We'll have a competition to find out who can party hardest. Emma Bunton is pretty good, although she sometimes peaks too soon.''

Mel C - who was known as Sporty Spice during her time in the girl group - is hoping to reunite with Emma, Victoria, Melanie Brown and Geri Halliwell in 2016 to mark the 20th anniversary of their hit single 'Wannabe'.

She told the Daily Star newspaper: ''I'd like to think we'll get our act together and do something spectacular to acknowledge 20 years of Wannabe.''

Despite admitting that she'd like to get back together with the girls, Mel also opened up about Geri's recent single 'Half of Me' which was released on iTunes Australia.

She added: ''I don't think it was her best work... I think she is aware of that. It's a shame how it was received... It didn't do very well over there.''