The only “Wedding Bell Blues” for Marilyn McCoo and Billy Davis Jr., who perform this weekend at Yoshi’s in Oakland, are the ones in the hit song they recorded in 1969. The pair has been wed for more than 40 years. It’s not all been bliss, but they worked through the hard times and literally wrote the book on maintaining a successful relationship with “Up, Up and Away: How We Found Love, Faith and Lasting Marriage in the Entertainment World.” Read More