MICK Jagger has said he has sung on the title track of brother Chris' new album Concertina Jack.
Sir Mick of The Rolling Stones announced his involvement on Twitter this evening.
My brother Chris Jagger has a new album called Concertina Jack, & I'm singing on the title track. See the website: http://t.co/J5w5LMYYrQ
— Mick Jagger (@MickJagger) December 6, 2013
Chris Jagger, of Mudgley, said: "I'm not a big one for anniversaries but in the brew ha ha revolving around the Rolling Stones and 50 years I realised it's 40 years since my first record came out."
Brother Mick features in the chorus of Concertina Jack, a song about one of the brothers' relatives who left Kent for Australia and was known for playing the squeeze box.
Mick also features in a second track on the same album, which is out now. The album was recorded in France at Mick's place, because, as Chris said: "I knew the band would be down there like a shot enjoying the atmosphere and making a good record into the bargain."
Concertina Jack is Chris' ninth studio album. He hopes it will make a good stocking filler and knock One Direction off the top spot.