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Jason Merritt/Getty ImagesUs Magazine Miley Cyrus -- who has been spotted smooching Aussie actor (and Last Song costar) Liam Hemsworth -- doesn't have any plans for Valentine's دن this year.

"Work," she told UsMagazine.com when asked how she'll spend the day. "I'm really boring."

See what Miley Cyrus - and all the stars - wore on the red carpet

During an E! pre-Grammy show, she denied rumors that she's engaged - یا that she's been wearing a promise ring. "I bought it myself," Cyrus, 17, کہا of the bling. "And I got it made in London, and everyone thought it was diamond when it wasn't. It was the cheapest thing ever ... So if I do get a promise ring, it better be real!"

See مزید stars sporting some serious bling!

Cyrus -- who told Us she looked آگے to seeing Lady Gaga the most at the Grammys -- کہا she tried on three dresses for Sunday's show.

"I hate trying on clothes - I cannot do it!" she کہا on the red carpet. "They pin آپ forever."

See the worst dressed stars at the Grammys

She eventually settled on a Herve Leger سے طرف کی Max Azria frock.

"I like it because it wasn't stuffy," Cyrus told Us. "I wanted to be edgy."