Don't ask Miley Cyrus to spell boyfriend Patrick Schwarzenegger's last name.
... Because she can't.
In a new interview with Good Morning America about her new MAC Cosmetics' Viva Glam campaign, the 22-year-old "Wrecking Ball" singer has no shame when it comes to not being able to spell her man's admittedly complicated last name.
"Literally, I just had this conversation. I can't even tell you," she tells GMA correspondent Cameron Mathison when he asks her to spell Schwarzenegger. "Apparently there's not a 'T' in it."
Miley and Patrick, 21, have been dating for about two months now. The pair first went public in November during a college football game between the CAL Golden Bears and the USC Trojans -- Patrick attends USC – when they showed some serious PDA.
The couple is obviously still going strong past the holidays, spotted on vacation in Hawaii just last weekend looking more enamored with one another than ever. On Thursday, the two met up for lunch in Sherman Oaks, Calif., Miley showing off her slim physique in a scuba-style jumpsuit.
ET caught up with Miley on Wednesday, when she got candid about her controversial image, particularly her racy Instagram posts.
"You make choices and sometimes they're right, sometimes they're wrong, just like in life," she explained. "Mine are magnified and people kind of try to make you seem out of control when actually I'm a pretty, happy, centered person that likes to do a lot of things for people."
Watch the video below for more of our revealing chat with Miley.