Miley Cyrus performed "Wrecking Ball" on The X Factor on Sunday night, and the starlet, who will celebrate her 21st birthday next weekend, wore a gold dress and black turban and sang inside a box with what appeared be a plastic sand dune. While we absolutely adore Miley, apparently she received a lot of flack from viewers for what they dubbed a disappointing and lackluster performance.

Apparently Miley saw some of the tweets, as she replied later in the evening, "happy to get some rest. time to go be sicky ... damned if you do damned if you don't. Vocal rest."

Setting aside the chatter about her performance, one thing is clear -- Miley loves her U.K. fans! Miles told host Dermot O'Leary, "I will be here next year in the spring on my Bangerz tour I will be here for a very long time so I'm looking forward to seeing you here next year."

Hopefully she gets some rest and recuperates!