Rolling Stone Ronnie Wood says he is looking forward to being right "among the muck and bullets" when he becomes a father for the fifth time.
The 68-year-old guitarist, whose theatre producer wife Sally Humphreys is expecting twin girls in June, said: "It is where every dad should be. I can't wait."
Humphreys, 31 years his junior, is Wood's third wife.
He has already nabbed band mate Sir Mick Jagger, 72, for babysitting duties.
Sir Mick said: "I have volunteered to look after the two children after they have reached the age of one. I am not very good when they are really young. I can do it, but I am much better after that."
They were speaking as they and bandmates Keith Richards, 72, and Charlie Watts, 74 arrived for the opening of Exhibitionism, a show reflects the rock band's 54 years in the music business.
Exhibitionism took three years to set up and features the revolting digs the Rolling Stones lived in before they became famous.
Sir Mick said the recreation of the flatshare on Chelsea's Edith Grove, complete with the smell of his favourite tandoori chicken dish, is one of the top picks of the exhibition at the Saatchi Gallery in central London.
Wood said he remembers the "dirty old socks and the fag ends, it was great."
Sir Mick said the enormous stages the band played were among some of the items which did not make the cut for the show which is the band's first major exhibition.
The Rolling Stones have just performed an historic free concert in Cuba in front of half a million fans.
Sir Mick said: "We just could not fit in all the pieces. I was a bit disappointed but you cannot have everything. We have models of stages."
Former Rolling Stone Bill Wyman, guitarist Jeff Beck, Bob Geldof, Sir Mick's daughter and model Georgia May Jagger along with former Spice Girl Geri Horner, Game Of Thrones actress Natalie Dormer and fashion designer Tommy Hilfiger were among the celebrities who took to the red carpet.
The exhibition spans two floors of the King's Road gallery, which is a stone's throw away from Edith Grove.
Nine different rooms covering over 1,750 square metres, each with its own distinctly designed environment, will be used to show how the band has changed the way rock music is experienced.
It will also include original stage designs, a 3D simulation of what it is like to be backstage, and then on the stage, with The Stones in addition to their collaborations with various big-name artists and designers such as Andy Warhol, Alexander McQueen and Martin Scorsese.