of Seven, Monahan duets with folk rock musician Brandi Carlile, with special guest appearances by Richie Sambora and Graham Nash. Monahan worked with Guy Chambers to co-write two songs for Tina Turner's hits album, Tina!: Her Greatest Hits. In 2009, Train returned to the studio with the album Save Me, San Francisco. That same year, Monahan and some of his fellow Train bandmates took on small acting roles in the CSI: NY episode "Second Chances". Monahan played the former homeless drug addict Sam Baker (dating Debbie Fallon (played by Kim Kardashian)) who becomes involved in a murder investigation. They performed the song "Hey, Soul Sister" from their new album, and "Calling All Angels". Despite the success of their new album, Monahan found time to collaborate with other artists in other projects. On April 4, 2010, he performed with The Hollies at the Rock and Roll Hall of Fame induction ceremony, as The Hollies were inducted. He sang lead vocals on the song "Long Cool Woman in a Black Dress". The following year, he contributed a cover of Buddy Holly's "Maybe Baby" for the tribute album, Listen to Me: Buddy Holly, which was released on September 6, 2011. Monahan also recorded a duet with Martina McBride, singing Train's song "Marry Me". This version of the song is on McBride's eleventh studio album Eleven, released October 11, 2011. He also performed several times with INXS during 2011; first on The Tonight Show with Jay Leno and then at a concert at Chateau Ste Michelle. Monahan also appeared on the show The Voice, where he performed "Drops of Jupiter" with contestant Vicci Martinez. In 2013, he started a podcast called Patcast where he interviews different people in the music industry, and talks about his work with Train. Monahan has sung the U.S. National Anthem at various events: August 5, 2007, at the Pro Football Hall of Fame Game in Canton, Ohio. April 8, 2011, at a home opener of the San Francisco Giants at AT&T Park. February 26, 2012, at the 2012 Daytona 500 in Florida. April 24, 2014, at Oracle Arena for Game 3 of the playoffs between the Los Angeles Clippers and Golden State Warriors September 14, 2014, at Levi's Stadium in Santa Clara, California for the home opener between the San Francisco 49ers and the Chicago Bears . January 18, 2015, at Gillette Stadium in Foxborough, Massachusetts for the AFC