Mick Jagger Signed Autograph She Was Hot Music Sheet Beckett LOA Rolling Stones. Beautiful Bold Signature of Music Icon Mick Jagger on a Rolling Stones She Was Hot Music Sheet. Comes Fully Authenticated with a Letter of Authenticity (LOA) from Beckett Authentication Services (BAS) for the Autograph’s Authenticity. The Certification Number is: AE19686. Please feel free to reach out with any questions!