It’s not all kids stuff at Nickelodeon. It’s big business for the long-running children’s, tweens, teens and sitcom-lovers network. The cable channel broke two of its ratings records with the debut of Big Time Rush along with a new episode of their tween show iCarly earlier this week.

Big Time Rush became the highest-rated and most-watched live-action premiere ever for the channel with a 6.8 million audience rating with kids. iCarly nabbed the show’s most-watched airing ever with kids in the 2-11 (two-year-olds are part of demographic?), tweens 9-14 and total viewers with 11.2 million. This beats the last record held by iCarly, which scored 8.9 million viewers. By comparison, CBS’ How I Met Your Mother won the timeslot for broadcast networks Monday with 10.5 million viewers.

That’s a lot of kids.

Big Time Rush is an easy and predicated win for Nickelodeon who is moving more into teen fodder from concentrate. The new live-action, scripted comedy series — which tracks the journey of four best friends who get a chance to be part of the glamorous L.A. pop music scene — marks Nickelodeon’s second TV collaboration with Columbia/Epic Label Group. The series follows Kendall (Kendall Schmidt, AI, Gilmore Girls), James (James Maslow, iCarly), Logan (Logan Henderson, Friday Night Lights) and Carlos (Carlos Pena, Ned’s DeClassified School Survival Guide).

In a recent interview, the cast had a special message to fans:

“On the show, there is music which is awesome, and about every other episode, we are going to release a brand new original song.  We love the music portion and we have gotten a good response from the fans because they seem to love it too.  We have so much fun making the show, so we can only imagine how much fun it will be for the viewers at home.  We could not ask for better fans, thanks for being so supportive!”

Sounds like Nick has their very own Jonas Brothers.