Jenna Bush Hager, the daughter of former President George W. Bush, interviewed legendary heavy metal singer Ozzy Osbourne on this morning's (Thursday, October 13) edition of NBC's crown jewel, the "Today" show. You can now watch the segment below (subtitles included).Ozzy has just kicked off a short book-signing tour to promote the publication of his new book, "Trust Me, I'm Dr. Ozzy: Advice From Rock's Ultimate Survivor". The collection of health advice columns penned by Ozzy Osbourne and collaborator Chris Ayres was published on October 11. Ozzy did his first book-signing session on that date in Huntington Beach, California, and has scheduled six more in California, Nevada and Arizona. The columns first appeared in the U.K.'s Sunday Times and in the U.S. in Rolling Stone. In the pieces, Ozzy "embraces his status as a medical marvel to tell incredible stories, offer advice as only he can and shed light on his seemingly superhuman ability to stay alive," according to a press release. "Trust Me, I'm Dr. Ozzy" follows up Ozzy's best-selling memoir, "I Am Ozzy", which reached No. 2 on the New York Times best seller list in 2010. Ozzy is heavily rumored to be rehearsing and writing with the other original members of BLACK SABBATH for a new album and tour, although there has been no official announcement of either happening yet.