'Zoolander 2' Stars Ben Stiller and Owen Wilson Strike a Pose in Valentino Store Window

Paramount

From fragrance commercial parodies to walking the runway at Paris Fashion Week, Ben Stiller and Owen Wilson have gone all out to promote Zoolander 2.

From fragrance commercial parodies to walking the runway at Paris Fashion Week, Ben Stiller and Owen Wilson have gone all out to promote Zoolander 2.

In their latest attempt to publicize the movie, the actors posed as Derek Zoolander and Hansel in a Valentino store window.

WATCH: Get a Whiff of the Latest 'Zoolander 2' Trailer

Stiller announced the surprise appearance on Twitter Sunday morning, writing, "Hey #Rome I hear Derek #Zoolander and Hansel are modeling at #Valentino store window in a little while."

Paramount

As promised, the stars later appeared in character to the delight of fans who gathered to gawk and take pictures.

The highly anticipated sequel to Stiller's 2001 cult classic features Stiller and co-star Wilson reprising their roles as over-the-top photogenic male models out to save the world from the villainous Jacobim Mugatu (Will Ferrell).

WATCH: Derek Zoolander Brings His Blue Steel to the Cover of 'Vogue'

The actors were in Rome for a screening event held for fans on Saturday.

Zoolander 2, also starring Kristen Wiig, Penelope Cruz and Benedict Cumberbatch, opens Feb. 12.