Amidst rumors the new Van Halen album is finally finished (and rocks hard, to boot), former Van Halen singer Sammy Hagar has wrapped up recording sessions on his new effort with rocking super-group Chickenfoot. The album -- Chickenfoot’s second -- is expected to drop before year’s end.

Bass player Michael Anthony, who turns 57 today, went to Facebook to describe the new effort: "Thanks to everyone for all the birthday wishes! The only thing that makes my day better is that mixing on the new Chickenfoot CD is done! It's a lot heavier than the first record and I can't wait to get it out there!"

Anthony, who recently appeared on Adam Carolla's 'Carcast' podcast, went onto reveal "the first single should hit the airwaves sometime this summer with the full enchilada to follow in the fall."

Chickenfoot -- which features Hagar, Anthony, guitarist Joe Satriani and Red Hot Chili Peppers drummer Chad Smith -- recorded the album with Canadian producer, engineer and mixer Mike Fraser (AC/DC, Metallica). The official title for the new LP is 'Chickenfoot IV,' an oddity the band addresses right here.

Watch Chickenfoot Perform 'Foxy Lady'