In the 90's at the time their album Step By Step became a top selling album popular teen pop band New Kids On The Block had their very own cartoon series that aired on ABC's Saturday Morning lineup and followed the New Kids On The Block on fun adventures and going on fun tours. And while New Kids On The Block videos were featured in the cartoon New Kids On The Block did not provide the voices to their animated characters. Who knew as popular as New Kids On The Block was that ABC would do a cartoon based on a popular music group and I can bet when this cartoon debuted lots of girls thought it was cute especially since New Kids On The Block were top crushes of girls in the 80's and 90's
Bestie

I've seen commercials for the merchandise such as toys before.

Hi Bestie! NKOTB was a very successful group. Ones of them became a famous TV actor. And he used his fame to start the career of his kid brother, who became an even more famous singer and movie star. Do you know their names? I await your "final answer"!
DTK

Hi Bestie! NKOTB was a very successful group. Ones of them became a famous TV actor. And he used his fame to start the career of his kid brother, who became an even more famous singer and movie star. Do you know their names? I await your "final answer"!
DTK

I know all of their names.

In the early 90s it was a trend to put out cartoons based off of popular musicians. Hammer man, Kid n play, I'm sure there is a few more I'm missing