Rock 'n' roll icon Chubby Checker has settled a trademark infringement suit regarding a naughty new app with Hewlett-Packard bosses.

The Twist singer, real name Ernest Evans, sued executives at the computer company last year (13) after learning they were selling the app they had jokingly titled "the Chubby Checker", which estimates the size of a man's penis based on his shoe size.

The company chiefs filed a motion to dismiss the case, claiming they had removed the app within days of receiving a cease-and-desist letter from Evan's legal team, but a judge agreed with the plaintiff and allowed his trademark infringement case to continue.

But now the two parties have reached an agreement. Hp chiefs admit no liability but have agreed not to make use of the singer's stage name, related trademarks or likeness.

Evans' claims of unfair competition and right of publicity were previously dismissed when the judge overseeing the case ruled that online service providers cannot be held responsible for the content third parties publish on them.