The reality TV star - who is currently competing in the US celebrity dance-off - is so scared she will forget her routine, she stays up all night memorising it.
The 24-year-old star wrote on her Twitter account: "I cant sleep keep going over samba steps in my head Louis van Amstel has choreographed an amazing dance to a wicked song Lady GaGa 'love game'!!!!! (sic)"
She said: "You're definitely seeing a softer side of me and it's a side I've always been afraid to show because God Forbid Ozzy Osbourne's daughter be girly rather than a punk.
"For the last 23 years of my life I have been called moody and now I can't stop myself from smiling."