IT'S THE RETURN OF ROBIN SPARKLES! BARNEY UNCOVERS THE LOST EPISODE OF ROBIN SPARKLES' "UNDERNEATH THE TUNES," ON "HOW I MET YOUR MOTHER," MONDAY, FEB. 4

Episode Features an All-New Song by Robin Sparkles

Canadian Celebrities including Alan Thicke, Jason Priestley, Paul Shaffer, Alex Trebek, K.D. Lang, Steven Page, Geddy Lee and Luc Robataille Guest Star as Themselves

Guest Stars Include James Van Der Beek as Robin's Ex-Boyfriend Simon, Abby Elliot as Jeanette, Ted's Newest Girlfriend, And Dave Thomas as Music Agent Chuck Gerusi

"P.S. I Love You" -Barney uncovers the lost episode of Robin's "Underneath the Tunes" as Robin Sparkles. Meanwhile, Marshall and Lily are concerned that Ted's new girlfriend is a stalker, on HOW I MET YOUR MOTHER, Monday, Feb. 4 (8:00-8:30 PM, ET/PT) on the CBS Television Network. Canadian celebrities including Alan Thicke, Jason Priestley, Paul Shaffer, Alex Trebek, K.D. Lang, Steven Page, Geddy Lee and Luc Robataille guest stars as themselves. James Van Der Beek guest stars as Simon, Abby Elliot guest stars as Jeanette, Ted's newest girlfriend, and Dave Thomas as music agent Chuck Gerusi.

SERIES REGULARS:

Josh Radnor (Ted)
Jason Segel (Marshall)
Cobie Smulders (Robin)
Neil Patrick Harris (Barney)
Alyson Hannigan (Lily)

RECURRING CAST:

Bob Saget (Narrator)

GUEST CAST:

Abby Elliot (Jeanette)
Corey Krueger (Gordie)
Craig Lee Thomas (Turk)
Alan Thicke (Himself)
James Van der Beek (Simon)
Paul Shaffer (Himself)
Jason Priestley (Himself)
Alex Trebek (Himself)
K.D. Lang (Herself)
Steven Page (Himself)
Geddy Lee (Himself)
Luc Robataille (Himself)
Dave Thomas (Chuck Gerusi)
Chuck Lacey (Old Man)
Rebecca Newton (Crew Cut Girl)

WRITTEN BY: Carter Bays and Craig Thomas, co-creators and executive producers

DIRECTED BY: Pamela Fryman

RATING: To Be Announced