Steven Tyler

Alberto E. Rodriguez/Getty Images for The Voice Health Institute

Singer Steven Tyler performs at The Voice Health Institute's "Raise Your Voice" benefit at the Beverly Hills Hotel on Jan. 24, 2013, in Beverly Hills, Calif.

Aerosmith, with lead singer Steven Tyler and guitarist and Joe Perry, play a free concert on Commonwealth Avenue in Boston on Nov. 5, 2012, in front of the band's apartment where they got their start over 40 years ago. The show was to promote their new album "Music From Another Dimension!" and also to encourage people to go out on Nov. 6 and vote.

Christopher Polk/Getty Images for Clear Channel

Singer Steven Tyler of Aerosmith performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on Sep. 22, 2012, in Las Vegas.

Singer Steven Tyler, right, and model Erin Brady arrive at the 19th Annual Elton John AIDS Foundation Academy Awards Viewing Party at the Pacific Design Center on Feb. 27, 2011, in West Hollywood, Calif.

In January 2013, it was reported that the couple had split, after getting engaged in late 2011.

Steven Tylertakes part in a panel discussion on the show during the Television Critics Association winter press tour in Pasadena, Calif., Jan. 11, 2011. — AP Photo/Chris Pizzello

Aerosmith frontman Steven Tyler served as a judge on "American Idol" for two seasons. Here, he takes part in a panel discussion on the show during the Television Critics Association winter press tour in Pasadena, Calif., Jan. 11, 2011.

Steven Tyler head shot, 1994.

Vocalist Steven Tyler of the rock band Aerosmith performs at the Verizon Wireless Amphitheatre on June 10, 2009, in Maryland Heights, Mo.

Steven Tyler and Joe Perry og Aerosmith — AP/Jeff Roberson

Vocalist Steven Tyler, right, and lead guitarist Joe Perry of the rock band Aerosmith perform at the Verizon Wireless Amphitheatre Wednesday, June 10, 2009, in Maryland Heights, Mo.

Singer Steven Tyler speaks onstage during the 'American Idol' panel at the 2011 Winter TCA press tour in Pasadena, Calif. (GETTY/Frederick M. Brown) — Getty Images

Singer Steven Tyler listens onstage during the "American Idol" panel at the 2011 Winter TCA press tour in Pasadena, Calif.

Steven Tyler, foreground, and Joe Perry are seen on stage at the American Music Awards in Los Angeles on Sunday, Nov. 23, 2008.

Aerosmith's Steven Tyler shows his wild side during the fourth quarter of the Boston Celtics' 131-92 win over the Los Angeles Lakers in Game 6 of the NBA basketball finals Tuesday, June 17, 2008, in Boston. The Celtics won their 17th NBA Championship.

Steven Tyler arrives for The 4th Annual MusiCares MAP Fund Benefit Concert in Los Angeles, Calif., Friday, May 9, 2008. MusiCares provides access to addiction recovery treatment for members of the music community.

Aerosmith lead singer Steven Tyler raises his microphone as he finishes "God Bless America" during the seventh-inning stretch of the opening day baseball game between the Boston Red Sox and Detroit Tigers at Fenway Park in Boston, Tuesday, April 8, 2008.

Aerosmith singer Steven Tyler attends the Third Annual Classic Rock Roll of Honor at The Landmark Hotel in London Monday, Nov. 5, 2007.

Aerosmith's lead vocalist Steven Tyler performs during a concert in Bangalore, India, Saturday, June 2, 2007. The band performed in India for the first time, where they played many of their greatest hits.

Aerosmith band members, frontman Steven Tyler, left, drummer Joey Kramer and guitarist Joe Perry, right, perform on stage at an exclusive gig to promote "Hyde Park Calling" at The Hard Rock Cafe on Feb. 19, 2007, in London.

Aerosmith lead singer Steven Tyler, right, arrives with Erin Brady at the BRIT Music Awards 2007 in London's Earl's Court, Wednesday, Feb. 14, 2007.

Aerosmith's Steven Tyler, left, guitarist Joe Perry, right, and wife Billie Perry arrive for music producer Clive Davis' pre-Grammy party in Beverly Hills, Calif., Tuesday, Feb. 7, 2006.

Steven Tyler, lead singer for Aerosmith, and his daughter, Chelsea, share the stage at the 2002 VH1/Vogue Fashion Awards. Tyler won the award for "Rockstyle" during the show.

Steven Tyler and Joe Perry — AP Photo/Chris Carlson

Steven Tyler, left, and Joe Perry of Aerosmith arrive for the 48th Annual Grammy Awards Wednesday, Feb. 8, 2006, in Los Angeles.