And Sir Paul McCartney and Ringo Starr enjoyed something of a Beatles reunion on Wednesday night as they headed out for dinner together at Cecconi's in Los Angeles.
The pair were joined by friends, as well as their respective wives Nancy Shevell and Barbara Bach, for the meal at the celebrity favourite haunt.
Ringo and Paul, 70, have had a love-hate relationship since their Beatles days, with their last performance together coming in 2009.
In an interview back in 2011, Ringo said of his relationship with Paul: 'We are as close as we want to be.
'We’re the only two remaining Beatles, although he likes to think he’s the only one.'
But despite the fact that their friendship appears to be more love than hate at the moment, it looks unlikely that the pair will enjoy a musical reunion any time soon, as both Paul and Ringo currently have separate commitments.
Paul is gearing up for his Out There tour, which kicks off in Brazil on May 4th and will see the musician perform in countries including Poland, Italy and Austria as well as various venues in America before the tour draws to a close in Seattle on July 19th.
And Ringo will be touring South America with his All-Starr band later this year.
The 72-year-old musician confirmed the news in a post on his Twitter page last week, writing: 'Great news Ringo and the Allstarrs Coming back To south America Great news See you soon. R***.'
Meanwhile, Paul's dinner with his former bandmate came as the singer recorded a voice message as part of Tony Bennett's campaign against gun violence.
Paul's message was part of a text-to-call operation for Bennett's Voices Against Violence campaign - encouraging Americans to send a text, which led to the singer's message and connected the caller to his or her local Senate office after providing a zip code.
But the Senate rejected a bipartisan attempt to ban assault weapons on Wednesday - following December's slayings of 20 children and six aides at an elementary in Newtown, Conn.
The 54-46 vote fell along party lines, with most Democrats supporting the legislation and most Republicans rejecting it.
Bennett, 86, tweeted after the failed vote: 'We will not stop until our voices are heard.'
Other celebrities who supported Bennett's campaign included Alec Baldwin, Gloria Estefan, Josh Groban and Juanes.
By Sarah Bull