The Omaha Symphony’s Pops series concludes with A TRIBUTE TO JOHN WILLIAMS this Friday through Sunday at the Holland Performing Arts Center.  One of the most popular and successful modern American composers, Williams has composed the music for nearly 80 films, including Superman, Raiders of the Lost Ark and Harry Potter & the Sorcerer’s Stone.  You can join Maestro Thomas Wilkins and the orchestra as they pay tribute to this 17-time Grammy Award winner.  The curtain goes up at 8:00 p.m. on Friday and Saturday and at 2:00 p.m. on Sunday.  The Holland Center is located at 13th and Douglas Streets.