Steven Tyler - Steven Tyler Swears Live On U.s. Breakfast Tv

Aerosmith made a rare early morning appearance on the programme to promote their upcoming album Music from Another Dimension! with an outdoor performance, but producers got a little more than they bargained for when Tyler appeared to forget the show was being aired live.

Frontman Tyler declared, "Good morning America!" before the programme cut to a weather update - which was when he dropped the clanger.

Weatherman Al Roker was giving out the latest climate information to viewers when Tyler was heard off camera telling the waiting crowd, "Thanks for coming out, you crazy f**ks! We love you! New York City!"

Roker completed the forecast before trying to laugh off the incident, quipping, "That's why they haven't done mornings!"

The band later went on to perform hits such as Walk This Way and Sweet Emotion, as well as new song Lover Alot and tracks from their latest album.