SCARLETT JOHANSSON showed off her singing skills when she hosted US comedy show Saturday Night Live (14JAN06) by joining comedienne Amy Poehler for a rendition of ISN'T IT WONDERFUL BEING A STAR.

The actress also wowed with a comedy routine as fictional dance music star-with-attitude DONNA SMALLS ENGLISH, who performed the suggestive DONCHA WISH.

Wearing a sparkling black bustier, mini-dress and knee-length leather boots, Johansson rapped, "Doncha wish/Doncha wish/Doncha wish/You looked like this..."

In character as English, Johansson joked, "I performed at Elton John and David Furnish's wedding... They didn't ask. I just ripped off my catering jacket, got in their face and sang - because that's my style."

Johansson also paid tribute to her Scandinavian roots by playing Swedish TV chef SIGRID HELGESSON in fictional culinary show SMORGASBORD.

The actress' Saturday Night Live highlights also featured her portrayals of a New Jersey chandelier saleswoman, a bratty, rich teenager planning for her Sweet 16 birthday party and an oceanographer who breaks up with her husband while crammed into a tiny submarine.