The singer, 25, debuted her new hairstyle at the two-day festival in Chelmsford where headline acts included Beyoncé and Kings Of Leon.
Underneath a black bowler hat, Tulisa wore her newly-bobbed hair sleek and straight after taking out her long hair extensions.
She rocked festival chic in scuffed black leather boots with silver studs, black shorts and oversized vest.
Tulisa was seen drinking cocktails at the Mahiki Coconut Backstage Bar - including the Mahiki Coconut Grenade served in a coconut! - and gossiped with original Sugababe and MKS singer Mutya Buena.
Earlier this week, Tulisa was left devastated when her sports car was scratched with an offensive word... So we're glad to see her put the nasty business behind her and have a good time at the famous music festival.
Do you like Tulisa's new bob? Tell us below!
Watch the video for Tulisa's single 'Sight Of You':