Former 'Baywatch' star David Hasselhoff has proposed to Simon Cowell's girlfriend Terri Seymour.
The marriage proposal came after the pair took part in a 12-hour reality television experiment for US television show 'Extra'.
Hasselhoff, who acts as a judge on 'America's Got Talent', was locked into a hotel room with Seymour for the show.
The pair played video games, had massages and watched performances from illusionists Penn & Teller and comic Carrot Top while taking part in the experiment.
Seymour later got a shock when Hasselhoff proposed to her, during the recording of the show.
The 'Extra' episodes are due to be aired on US television over the next three nights.
