3:35gma3September 28, 2018David Alan Grier hilariously explains what's not cool"The Cool Kids" star David Alan Grier plays "What's cool, kid?" on "GMA Day."Up Next in newsThe 2024 total eclipse seen across North AmericaApril 8, 2024Sandra Day O'Connor, 1st woman on Supreme Court, dies at 93December 1, 20231 year after Club Q tragedy, loved ones share treasured memories of lives lostNovember 19, 2023