Feeds
Rex Features
The singer was told by the girl's father that she was a huge fan so he turned up at her bash and performed a selection of hits for her guests.
Doherty's agent has received over 500 requests since he played the surprise concert.
"The birthday girl’s dad told him she was a huge fan and that he’d give him £100 to perform at her party," a source told The Sun.
"Pete was flattered and happy to oblige. He turned up and played his big hits. Everyone had a great time.
"Some partygoers asked him when he was going to start making dogs out of balloons. He took it in good humour. It made her day and now she’s a very popular girl with her pals.
"Her dad told the local paper and Pete has been bombarded with requests to play since."
