Here is the updated list of participants for WWE's annual over-the-top-rope contest, the Royal Rumble. Twenty-four participants have been announced for the match thus far with the SmackDown participants being announced on Friday:

Raw: Big Show, Carlito, Cody Rhodes, Evan Bourne, Jack Swagger, John Cena, Kofi Kingston, Mark Henry, MVP, Santino Marella, Shawn Michaels, Ted DiBiase, The Miz and Triple H

SmackDown: Batista, Chris Jericho, CM Punk, Kane and The Great Khali

ECW: Shelton Benjamin, The Hurricane, William Regal, Yoshi Tatsu and Zack Ryder

It was also announced on Friday that Michelle McCool would defending her WWE Women's Championship against Mickie James at the event.

Matches announced thus far include:

World Heavyweight Championship Match
Undertaker (c) vs. Rey Mysterio

WWE Championship Match
Sheamus (c) vs. Randy Orton

ECW Championship Match
Christian (c) vs. Ezekiel Jackson

WWE Women's Championship Match
Michelle McCool (c) vs. Mickie James

Check out video of Mickie James singing ->