Gwen Stefani joined Games of Thrones actor, Peter Dinklage, to sing a comedy song called 'Space Pants'on SNL last night (April 2).

The 'Space Pant's song features in a comedy skit set in a restaurant frequented by the mafia. Dinklage played a lounge singer.

Both Stefani and the Golden Globe winner wore silver tops and 'space pants' and had platinum blond hair. The special 'space pants' had graphics of planets prints.

The skimpy pants got the attention of one of her Twitter followers, her boyfriend, Blake Shelton.

He wrote: "Hey @gwenstefani... Please wear space pants when you get back home!!! Ha!!!!"

As well as the comedy sketch, Stefani sang 'Make Me Like You' and 'Misery.'

It has been ten years since Stefani last performed on SNL, and yesterday's appearance marked her fifth on the comedy show.

It was Dinklage's debut as an SNL show host.

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Watch the 'Space Pants' skit, and the SNL promo, below: