Los Angeles, Sep 4 : Director Matthew Vaughn has reportedly roped in Taylor Swift for a cameo in his forthcoming movie "The Secret Service".

The 23-year old might learn martial arts for her guest appearance in the movie.

"Matthew looked at a number of actresses to play the part before settling on Taylor - apparently she was a natural on the big screen," mirror. co. uk quoted a source as saying.

"She's also someone fresh and unseen in Hollywood terms which was massively appealing," the source added.

The singer have an action sequence with actor Samuel L Jackson and is excited about the role.

"She will be required to have some heavy-duty martial arts training in order that her character convincingly kick Samuel L Jackson's butt," a source said.

"It will be Taylor's biggest challenge to date but she cannot wait," the source added. (IANS)