One of the best dancer/singer dynamos performing today, R&B/pop sensation Usher Raymond IV is sure to have the whole crowd moving and grooving and sweating to hits, including his latest, "DJ Got Us Falling In Love Again" and "OMG" -- the stuttering, staccato wonder that gives his latest tour its name. There are so many ways to love it. Tonight, Friday, Dec. 17, at 8 p.m. Verizon Center, 601 F St. NW. Tickets are $29.50 to $128. Call 202-628-3200 or visit verizoncenter.com.