Lady Gaga had a manic outing last night, performing and partying her way through London and into the early hours. While most of us would hop into a cab at the end of an evening, the US singer had her tour bus waiting outside for her.

Economic outfit: a bra, skirt, shoes and a little headpiece

She began her night by supporting the Pussycat Dolls at The O2 arena. Right after stepping off stage she then made her way straight to Camden after receiving a call from Grace Jones. Our source said: "Grace phoned her personally and invited her along, and Gaga was over their like a shot. She was telling everyone it was one of the greatest nights of her life to be called up and made a fuss over by Grace." But the night was far from over. She then headed to Maya in Soho, where she was down to DJ for the club's ultra-cool F*** Rehab night. Then it was a quick journey across the West End to the St Martin's Lane hotel, where she hooked up with Mark Ronson and partied there until 2.30am.

Where's the party? Lady Gaga heads to another bash with Mark Ronson this morning

They then headed back to a pal's place in Shoreditch before finally calling time at 5.30am. The Lady boarded her bus and went to Manchester for tonight's gig.

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