Alan Thicke by Denise Truscello/ WireImage.com
The April 21 episode of
How I Met Your Mother
is turning into a wonderful '80s flashback. Already marking the return of
, the outing will feature visits from former teen popstress
, playing Ms. Sparkles' gal pal and father, respectively, in a newly unearthed video for "Sandcastles in the Sand," a ballad Robin wrote upon being dumped by her backup-dancer beau (
James Van Der Beek
co-creators Carter Bays and Craig Thomas wrote and composed "Sandcastles in the Sand" as the B-side of "Let's Go to the Mall," using iconic '80s breakup ballads such as "Foolish Beat" and "Toy Soldiers" as inspiration.
With Michael Gross (
) having guested as Ted's pop and Bob Saget (
) playing narrator, Thicke represents the third classic '80s dad to get involved with the CBS sitcom.
What's your take?
Is this shaping up to be one of
's best eps? -