N o w - H o l l y w o o d . b l o g s p o t .c o m

Heidi Montag and Spencer Pratt are following in Britney's footsteps!

The Hills stars are guest starring on How I Met Your Mother in an episode set to air this January, CBS told Usmagazine.comin a statement Monday.

“Heidi and I are honored to be part of such a successful show," Pratt told Us.

He joked: "I don’t want to give anything away...but I’m the Mother.”'

"They will be playing magazine cover-versions of themselves as Marshall (Jason Segel) desperately searches for a place to “read a magazine” while at the office," CBS said in the statement. "Montag and Pratt will taunt and tease Marshall from the confines of his current copy of Them Weekly."

Montag and Pratt will film their segments this week.

"We can confirm that Heidi and Spencer will appear on the show, but we can't give away anything specific about the episode," Co-creator and Executive-Producer Craig Thomas said. "All we can say is that they play themselves."

The singer starred as a dorky receptionist named Abby in two episodes of the CBS show earlier this year. On her first appearance in March, she helped the show win its highest ratings ever.