![Nuno Bettencourt and Richard Fortus](https://cdn.mos.cms.futurecdn.net/6FPyrkM78aaDaW5Y2WcT2j-320-80.jpg)
“I need to keep my f**king mouth shut”: Nuno Bettencourt issues apology to Richard Fortus following Rihanna gig disagreement
The Extreme guitarist's apology comes after he fired back at Fortus, who defended Slash in the wake of Bettencourt's suggestion he would struggle playing with Rihanna