*NSYNC announced via Twitter Saturday it will appear on Saturday Night Live's 40th anniversary special, which is scheduled to air Sunday night.
"Together again... Gee, it's good to be together again #SNL40," Justin Timberlake's former boy band tweeted.
NBC also confirmed Sarah Silverman will be taking part in the star-studded program.
"#SNL40 ANNOUNCEMENT: @SarahKSilverman is joining us for our 40th anniversary tomorrow night at 8/7c!" the network posted.