Later that year , the Aerosmith compilation '' Devil 's Got a New Disguise '' was released , which included two new tracks . Tyler hit the road with Aerosmith again for the Route of All Evil Tour with Mötley Crüe and also made several more public appearances . He made a cameo appearance on the sitcom '' Two and a Half Men '' , playing himself . On October 14 , 2006 , Tyler sang " God Bless America " during the seventh-inning stretch at game three of the National League Championship Series between the St. Louis Cardinals and the New York Mets at Busch Stadium in St. Louis . On November 24 , he volunteered by serving Thanksgiving dinner to the needy at a restaurant in West Palm Beach , Florida , before an Aerosmith show there . In 2007 , Tyler kept active in Aerosmith with the band 's world tour which had them perform in 19 countries . That same year , Steven and Liv Tyler were profiled on '' E! True Hollywood Story . '' On May 21 , 2008 , Tyler checked into Las Encinas Hospital rehabilitation clinic in Pasadena , California , to recover from multiple leg surgeries . He made a public statement saying , " The ' foot repair ' pain was intense , greater than I 'd anticipated . The months of rehabilitative care and the painful strain of physical therapy were traumatic . I really needed a safe environment to recuperate where I could shut off my phone and get back on my feet . " In June 2008 , '' Guitar Hero : Aerosmith '' was released , the franchise 's first video game based solely around one band and the most successful game based around a band . On July 14 , 2008 , Tyler 's mother , Susan Tallarico , died at age 84
world tour
Aerosmith World Tour 2007
Steven Tyler