Jennette McCurdy, Nathan Kress and Ariana Grande for Math-a-Thon

new St. Jude Math-A-Thon video featuring Nickelodeon stars Ariana Grande (Victorious), Nathan Kress (iCarly) and Jennette McCurdy (iCarly). The video features an overview of the St. Jude Math-A-Thon program, along with a look inside St. Jude Children's Research Hospital. The video also contains a personal look at the kids of St. Jude, and shows you how you can help them in their fight to overcome childhood cancer and other deadly diseases. Check it out now. Do the math. Help save lives