User blog comment:Auslly~Bobbie~Music/Talk Like Crazy!/@comment-24343688-20140521235711/@comment-7665418-20140523000436

Yep! It was renewed for a season 4! And season three just finished shooting...

http://www.nickandmore.com/2014/05/09/disney-xd-renews-lab-rats-for-season-4/

For comfirmation.