
Why is Colbert singing Rebecca Black’s viral hit “Friday,” you ask? Apparently, this all started when Stephen Colbert donated $26,000 on behalf of Fallon to DonorsChoose.org. That late night host responded by looking to his fans to match the donations, offering the “Friday” performance by Colbert as a prize if the goal was reached. According to E!, Fallon fans doubled the target amount and NBC donated an additional $26k as well. Jimmy Fallon tweeted the news that the goal was reached earlier this week and Colbert took the stage tonight, along with a few other surprise guests: