Hand in Hand: A Benefit for Hurricane Relief will expand its efforts to help victims of both Hurricane Harvey and Hurricane Irma. 

Tonight's show promises performances and appearances broadcast live from Los Angeles, New York, Nashville and Texas. Participants include Beyonce, Justin Bieber, Sean "Diddy" Combs, Faith Hill, Tim McGraw, Julia Roberts, Gwen Stefani and Barbra Streisand

Country fans will enjoy music from George Strait, Miranda Lambert, Chris Stapleton, Robert Earl Keen and Lyle Lovett.

Blake Shelton and Reese Witherspoon will host the Nashville portion, Michael Strahan takes care of the New York cut-ins, and Jamie Foxx will hold things down from Los Angeles. 

The stars are coming together for the Hand in Hand benefit for hurricane relief, broadcast on iHeartRadio & 17 networks tonight (Tuesday) at 8 p.m. [ET] and [PT].

For the full list of celebrities involved or to donate, head to the official Hand in Hand website.