Stella McCartney celebrates autumn 2018 collections

London-based designer Stella McCartney called the Jan. 16 presentation of her autumn 2018 women's and men's collections at SIR Studios in Hollywood a "Stella-bration" -- and with surprise musical performances by Beck, St. Vincent, Leon Bridges and her father, Paul McCartney, who sang along with a Beatles cover band called Dr. Pepper and the Jaded Hearts Club Band, it was that indeed.