Festivities for the 20th annual Detroit Tree Lighting at Campus Martius Park will take place from 4-9 p.m. today, Nov. 17.

The closed roads will reopen on Nov. 18 at 6 a.m.

The public is invited to enjoy the live show from the MGM Grand Detroit Main Stage or throughout the area with big screens stationed in Campus Martius Park and Cadillac Square.