Miley Cyrus parties with ‘unicorn’

Miley Cyrus celebrated her 19th birthday by partying with a "unicorn".

Kelly Osbourne was in charge of organising the big bash, which took place on Tuesday at Beacher's Madhouse inside the Hollywood Roosevelt Hotel.

The reality TV star tweeted that she was still working out details at 11pm on Monday.

One of which included a horse with a horn strapped to its head. An onlooker told E! that the unicorn was inside the soiree.

The singer was certainly impressed with all the extra effort the reality TV star had gone to.

"Can't thank @MissKellyO for the best partyyyy ever! =]]]] i loveeeee you!" Miley tweeted. "Let's just say there was a unicorn in the lobby (sic)!"

Kelly wanted her best friend to let her hair down and take a break from working.

Miley was thrilled to be surrounded by all her family and loved ones

"Her mom Tish went, and so did her boyfriend Liam [Hemsworth]," a source told US Weekly. "The group was up until 3am just dancing up a storm and having fun."

Miley and Kelly became friends while shooting the new film, So Undercover, which has yet to be released.

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