Spears returning to set of US TV show

Britney Spears will definitely reprise her role on TV sitcom 'How I Met Your Mother', after signing a deal to appear in one more episode.

The pop star first appeared on the US show last month, playing a lovesick secretary - and she'll make her return to the small screen in an episode that is set to air in America on May 12.

The episode is scheduled to begin production on Monday and will feature Spears alongside the sitcom's star Neil Patrick Harris, as their characters continue their on screen love affair.

In a new statement, the show's exectutive producer and co-creator Craig Thomas says: "We're all so thrilled to have Britney joining us once again."

Spears' initial guest appearance on 'How I Met Your Mother' helped the show earn its highest ratings.