United Kingdom, Dec. 19 -- Jason Donovan has described his collapse at Kate Moss' 21st birthday party as "through the roof embarrassing".

The 57-year-old actor/singer was among the famous face who gathered at the notorious Viper Room venue in Los Angeles to celebrate the model's milestone back in 1995 with Kate's then-boyfriend Johnny Depp organising the bash and invited stars including Michael Hutchence, Christy Turlington and Linda Evangelista.

However, Donovan started a drugs binge "two or three days before" the party and ended up collapsing on the dance floor before being carried out of the venue by paramedics and he still feels shame over the incident. Speaking on the Great Company podcast, Donovan explained: "I flew in from Austra...