B.B. King at the Canyon Club, Agoura Hills, CA.
Rachel Cantu opened for B.B. She played guitar and had one other guitarist as accompaniment. She played mostly a slow, country style. I think that she has a nice voice and talent, but I just couldn't get into her music. That's surprising as I tend to really like this style of music.
Later, the B.B. King Band opened without B. and played two pieces. They are a group of older blues and jazz musicians and definitely have their act together. Then B. walked out. He barely made the seat that was set up for him. He proceeded to joke, talk and perform for almost two hours. B.B. King still has his charisma, voice and guitar talent. It was an extremely enjoyable concert.
If you have a change to see B. live, I highly recommend it. He and his band put on a great show. But don't wait, he's 83 and the diabetes is definitely affecting his ability to walk. One never knows how many concerts he has left in him. So make the effort to see him while you still can.