Miley Cyrus can't spell Patrick Schwarzenegger's last name

Los Angeles: Pop star Miley Cyrus has trouble spelling out her boyfriend Patrick Schwarzenegger's last name.

The 22-year-old 'Wrecking Ball' singer revealed on 'Good Morning America' that she just realised 'there's not a T' in her boyfriend's last name, reported Ace Showbiz.

"Literally, I just had this conversation, I can't tell you. Apparently there's not a T in it," Cyrus said.

She visited the ABC morning show to promote her new MAC Cosmetics Viva Glam campaign. The proceeds from the sale of her custom lipstick will benefit the MAC AIDS fund.

"It's fun for young people to get to buy a lipstick and know that it's going to actually go to changing the way that their future is going to be," she said. "I realised that if there's going to be all this attention on me all the time, no matter what I say, no matter what I do, I should be saying something and speaking on behalf of those that kind of feel like they have no voice."