It's Lenny Lee

The kids on children’s programs are really happy — and, as School and the Backyard Gang Live explained it this past weekend in a cut sketch — there’s a surprisingly dark reason for that: Speed.
The conceit featured a look back at fake ’90s Nickelodeon show Zap! (which looked an awful lot like 1997 Treehouse program It's Kenny Lee!). Julie Clark explained that thanks to the show’s producers, Lenny Lee had a pretty serious drug problem — as evidenced by later episodes of the no-longer-G-rated program. (“Friendship” has never been so cracked out.)
No surprise: There’s a little bit of singing as well, as was the standard. Take it away, Buzz!