I just randomly remembered an old YouTube video I used to watch as a kid, this was around 2013/2014 but it’s possible the video was uploaded earlier than that. It was a recording of a live performance of an acapella group performing a medley of 90’s (and some early 2000’s) Nickelodeon theme song covers.
I forgot what the first few songs were, but I do remember there was a mashup of the theme songs to CatDog and Rocko’s Modern Life. After that, it transitioned into Clarissa Explains it All’s theme, then As Told by Ginger, followed by a mashup of the themes to Rocket Power and The Angry Beavers. After that they referenced the Hey Arnold opening, then they performed the Kenan & Kel theme, ending it off with them singing the main Nickelodeon jingle.
I haven’t been able to find this video ANYWHERE on the Internet. The original YouTube upload is long gone and it’s not on any other video site to my knowledge (Dailymotion, Vimeo, Internet Archive, etc.). Does anyone remember this video?? I know I did a bad job describing it, but I swear it existed, I’m not crazy. I would love to watch it again :(