US Weekly is reporting the musician is expecting his third daughter with wife, Jordyn Blum!
According to the mag, the parents have already used Blum's favorite names for her two eldest, 8-year-old Violet Maye and 5-year-old Harper Willow, so she's not sure what this little lady will answer to.
But we do know that at least one of her big sisters has inherited their father's good taste in music.
According to her dad, Violet shares his appreciation for one of rock n' roll's greatest bands, The Beatles.
"Recently I showed my 6-year-old daughter, Violet, the brilliant Yellow Submarine movie," he wrote in a note penned for a Beatles' compilation, adding, "It was her introduction to The Beatles, and she instantly shared the same fascination I felt when I was her age discovering The Beatles for the first time."
If the girl group is eventually formed, we pick Harper as the lead singer. When she debuted to the world Grohl described her as, "7 lbs. 8 oz., 20-inches long and loud as hell."