By Iona Kirby
Last updated at 12:41 PM on 3rd January 2012
For a 63 years old man, Steven Tyler is still in pretty good shape.
But despite boasting a slender frame, the Aerosmith frontman's shirtless display in Hawaii yesterday revealed certain things are starting to go on the slide.
The ageing rocker and Dude (Looks Like A Lady) singer stripped down to reveal his 'man boobs' - otherwise known as 'moobs'.
Tyler is on a Hawaiian holiday with fiancee Erin Brady, 38, who he recently proposed to after five years of dating.
The couple took part in a blessing ceremony on the island over the weekend.
Tyler has been spending a large amount of time in Hawaii and also took his other half on a romantic holiday there in November.
Other celebrity guests included Alice Cooper and his wife Sheryl, Tom and Ashley Arnold, Pat Simmons, and Austin Powers star Mike Meyers.
Tyler ended the night with a bang as he took to the stage to perform Aerosmith hit Walk This Way.
The Rocker's first marriage was to Andy Warhol model Cyrinda Fox lasted from 1978 to 1987.
The pair had a daughter together, Mia, who followed her mother's footsteps into modelling.
They had two children together, a daughter, Chelsea, and son, Taj.
The couple divorced in 2006, the same year Tyler entered into a relationship with Brady.