The United States Champion was a special guest co-host twice this week during the 9 a.m. ET hour of NBC's "Today," live from New York City. The Champ kicked off a week of SummerSlam festivities in the New York City area on "Today."

It was also announced that Cena will grant his 500th wish through Make-A-Wish to Rocco Lanzer, 8. Make-A-Wish and WWE will celebrate Cena becoming the first celebrity in history to grant 500 wishes on Aug. 21. The event, which is being hosted at Dave & Buster’s Times Square, will feature appearances by Cena, WWE Chief Brand Officer Stephanie McMahon, Make-A-Wish America CEO David Williams, Sheamus, The Bella Twins and wish children and their families.

Also in celebration of SummerSlam and John Cena’s 500th Wish, Cena, WWE Chief Brand Officer Stephanie McMahon and Make-A-Wish America CEO David Williams will accompany seven wish kids, and ring the Opening Bell at the New York Stock Exchange on Aug. 21. For more than a decade, Cena has been granting the wishes of children through WWE’s partnership with Make-A-Wish which began more than 30 years ago. To date, WWE Superstars and Divas have granted more than 6,000 wishes, more than any other sports and entertainment organization.  

For more on "Today," visit today.com. For complete SummerSlam coverage, visit summerslam.com.