Demi Moore and Bruce Willis’ eldest daughter showed off her singing skills at a Hollywood party last week – but failed to impress the celebrity crowd.

Rumer Willis, who has hinted that she’s planning to record an album, joined the house band at the Hollywood Roosevelt Hotel on Thursday night to belt out a rendition of Missy Elliott’s The Rain.

But onlookers were far from amazed. One partygoer says, “It wasn’t that she was that off-tune or horrible, but she just wasn’t that good and the crowd was not feeling it.”

WENN