Zac Hanson, Taylor Hanson and Isaac Hanson of Hanson attend the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 21, 2013, in Las Vegas. David Becker | Getty Images for Clear Channel 2013
Zac Hanson, Taylor Hanson and Isaac Hanson of Hanson attend the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 21, 2013, in Las Vegas. David Becker | Getty Images for Clear Channel 2013