Rolling Stones rocker Ronnie Wood is celebrating following the birth of his eighth grandchild on Monday (26May14).

The musician's daughter, Leah Wood, and her husband Jack MACDonald welcomed a little brother for their daughter Maggie, who turns five on Wednesday (28May14).

Sharing the news with fans on, the rock veteran writes, "Congratulations to my daughter @MsLeahWood and Jack & Maggie ~ Baby 'Otis Sonny David MACDonald' was born today!"

Leah is Ronnie's daughter from his marriage to Jo Wood; she has been married to financier MACDonald since 2008.

The baby news comes a week after it was revealed bandmate Mick Jagger had become a great-grandfather following the birth of his granddaughter Assisi's baby girl.