On March 12, 2007, the Rock appeared on a WWE show after nearly three years, via a pre-taped promo shown during "Raw". He correctly predicted that Bobby Lashley would defeat Umaga at WrestleMania 23 in Donald Trump and Vince McMahon's "Battle of the Billionaires" Hair vs Hair match. On March 29, 2008, Johnson appeared to induct his father Rocky Johnson and grandfather Peter Maivia into the WWE Hall of Fame. Johnson's next appearance was through a pre-taped promo on October 2, 2009 during the "Decade of SmackDown".