From 1969 (Ep 14, aired on November 27, 1969), the first performance of the classic "Mahna Mahna" by Bip Bippadotta (Jim Henson) and two Anything Muppet girls (Frank Oz and Loretta Long). Not new to YT, just a cleaner source. CLICK ON SHOW MORE FOR INFO AND LINKS!
Technically speaking, the lead singer and the title of the song when he sings it is Mah Na Mah Na, a prototype of the character that would become Bip Bippadotta.
Originally written by Piero Umiliani ("Mah-Na Mah-Na") for a 1968 Italian "mondo" film (exploitative pseudo-documentaries) about life (mostly sex-related) in Sweden, titled "Svezia, Inferno e Paradiso" ("Sweden, Heaven and Hell").
The most famous Muppet version debuted on "The Ed Sullivan Show" later that year, where it was performed by Mahna Mahna (Jim Henson) and his back-up singers, the Snowths (Frank Oz). Frank performed both Snowths at the same time, hence the arms couldn't be controlled by rods and swung freely from side to side. This version was restaged on numerous TV variety shows and featured as the opening number on the first episode of "The Muppet Show" in 1976. Lots of fun versions to explore below!
VIDEO (The Ed Sullivan Show, 1969): http://bit.ly/2c6u3Dj
VIDEO (The Dick Cavett Show, 1971): http://bit.ly/2c6uXzY
VIDEO (The Muppet Show, 1976): http://bit.ly/2c6vrWV
VIDEO (Muppets Tonight w/Sandra Bullock, 1996): http://bit.ly/2c6vuSn
VIDEO (The Muppets closing credits, 2011): http://bit.ly/2c6vWjv
VIDEO (Good Morning, America, 2011): http://bit.ly/2c6uuOf
VIDEO (Cake cover, 2002): http://bit.ly/2c6wRjV
VIDEO (Star Wars w/Cake's cover): http://bit.ly/2c6wBkS
VIDEO (Live fanmade version): http://bit.ly/2c6wgPj
Shameless Amazon Plugs! (TMS=The Muppet Show and SS=Sesame Street)
Platinum Too (SS version; CD) http://amzn.to/H2UIJe
The Muppet Revue (TMS version; VHS) http://amzn.to/1OH3Jy5
The Muppet Show: Season One (4 DVDs) http://amzn.to/MHzPtw
Best of the Muppets (TMS version; CD) http://amzn.to/1RgRNE9
Music, Mayhem and More! (TMS version; CD) http://amzn.to/1kYoJDb
Muppets Magic from The Ed Sullivan Show (DVD) http://amzn.to/1KFXdmG
"The Muppets" sheet music (TMS version; Book) http://amzn.to/2ckQ2E9
A&E Biography: Sesame Street (SS version; VHS) http://amzn.to/2ckNm9i
The Muppets: Original Soundtrack (TMS version; CD, MP3) http://amzn.to/R4VNWL
Songs From The Street: 35 Years Of Music (SS version; 3 CDs) http://bit.ly/c4JRb
Meet The Muppets! (TMS version; VHS) http://amzn.to/1oqejYu (Volume 2; VHS) http://amzn.to/1oqeyTl
Jim Henson: A Sesame Street Celebration (SS version; MP3s) http://amzn.to/16kJpXt; http://amzn.to/16kJD0y