Fashion Police host Kelly Osbourne wants to end her long-running feud with Lady Gaga.

The 29-year-old star has reached out to the Applause hitmaker to apologise for acting ''like a child'' when the singer gave her mother Sharon Osbourne a birthday cake to pass on to Kelly, who turned 29 on Sunday.

Taking to her Twitter page, Kelly wrote: ''@ladygaga I acted like a child last night. Just not into publicity stunts call me & we will end this like adults I dont want 2 fight anymore (sic)''

Gaga has not yet responded to the message.