Can someone help me identify a song?

[Pig'sSaysAdios]

"La de da de dum la de da de dum, what's the name of that sooong!"

Ahem, Hola everyone, I was listening to this awesome orchestra do a medley of famous 80s pop songs. I recognize almost all the songs except for the first one. I feel like i've heard it before, it sounds extremely familiar, but for some reason I don't remember any of the lyrics, does someone know what song is the first one in this medley?:

 

[JT Yorke]

right?

 

[Pig'sSaysAdios]

right?

"Celebration" was part of the medley, but i'm talking about the song they played before it. The one at the very beginning that sounds vaguely like the "How I Met Your Mother" theme song.

 

[muppetperson]

 

[D'Snowth]

http://www.muppetcentral.com/forum/threads/the-whats-the-name-of-that-song-thread.52577/

 

[Pig'sSaysAdios]

Yay, thanks a bunch! That's definitely the right song, although, for some reason I thought I remembered men singing it.

http://www.muppetcentral.com/forum/threads/the-whats-the-name-of-that-song-thread.52577/

Oops, I actually totally forgot about that thread.

 

[Mynameisdean]

Yay, thanks a bunch! That's definitely the right song, although, for some reason I thought I remembered men singing it.

Oops, I actually totally forgot about that thread.

Don't worry, that thread is actually for making up lyrics for the song "What's the name of that song".