Cher is reportedly going to marry a former Hells Angel biker.

The 66-year-old singer-and-actress is set to tie the knot with Tim Medvetz, 42, this autumn with the couple planning on having a quickie ceremony at a wedding chapel in Las Vegas.

The nuptials will be the culmination of a road trip the pair intend to take across the US which will end in the gambling capital.

A friend of Cher's told The National Enquirer: ''Cher and Tim plan to hop on the back of a chopper this fall and take off on a road trip that will end at a Vegas wedding chapel.''

Cher and Tim - who recently scaled Mount Everest for a second time - were previously in a relationship a few years ago and came close to getting wed in 2008 but her busy career scuppered their plans.

After the romance ended, the 'Burlesque' star was convinced she wouldn't marry again, but her transgender son Chaz, 43, and other son Elijah Blue, 36, urged her to rekindle the relationship with Tim, and she took the advice and has never been happier.

The source added: ''This is Cher's last chance at love, and she has her sons Chaz and Elijah Blue to thank.

''Chaz sat Cher down and said, 'Mom, get a life! Go back to Tim!'

''The two met up secretly and they picked up right where they left off. Now Cher is beam­ing, and Tim told a pal, 'I thought climbing Everest was the ultimate call of the wild, but I think marrying Cher will top that!' ''

Cher has been married twice before. Her first husband was the late Sonny Bono - Chaz's father - who she wed in 1963 and divorced in 1975.

She then walked down the aisle with blues musician Gregg Allman - who is Elijah Blue's dad - later that same year but they separated after two years before finalising their divorce in 1979.

Cher has also been in relationships with Tom Cruise, Val Kilmer, Warren Beatty, Eric Clapton and Richie Sambora.