Actor, musician, and longtime friend of the Stern Show John Stamos stopped by the studio on Tuesday morning with a head full of impeccably coiffed hair and a heart full of hilariously endearing anecdotes, many of which appear in his new book, “If You Would Have Told Me: A Memoir.” The 60-year-old Beach Boys drummer and “Full House” star has lived a uniquely charmed life, so it’s little surprise many stories from his memoir have already made a splash in the news, including a time when he got his heart broken by a cheating girlfriend.