Former Van Halen frontman Sammy Hagar is apparently working on new material with Foreigner guitarist Mick Jones, who produced Van Halen's platinum-selling 1986 album 5150. A photo showed up on Hagar's Facebook page Monday, showing the pair of legendary rockers enjoying a nice dinner at El Paseo restaurant in Mill Valley, California. According to the post, Hagar and Jones had been writing for a couple of days in Hagar's studio. Neither musician would comment on what they were working on or even whether an album is on the way. Hagar is currently touring with an all-star band and collaborating with Chickenfoot bandmate Joe Satriani on a new blues-based side project.