Carol Burnett and Willie Nelson—Two Legends Celebrating 90 Years of Greatness

They've each given us endless smiles—and now the world is celebrating their milestone birthdays.

Carole Burnett celebrated her 90th with a bash of a show dedicated to her called Carol Burnett: 90 Years of Laughter + Love. In the celebration put on by NBC, Hollywood icons Katy Perry, Kristin Chenoweth, Steve Carell, Amy Poehler, Cher, and many others took the stage to sing, laugh, recount, and honor the lauded star, who has garnered six Primetime Emmy Awards, seven Golden Globes, a Tony Award, and a Grammy award through her career. We especially loved the heartfelt moments shared between Burnett and her "true friend," Julia Andrews.

Burnett told ET the special "Was fantastic." Adding, "As I have said before, I didn't want a birthday party with a cake and balloons and confetti. And I didn't want it to be a roast. I wanted it to be kind of an old-time variety show with live entertainment. We had a 90-piece orchestra. We had funny clips and wonderful guests who came on and were funny."

Country music icon Willie Nelson celebrated his 90th birthday in a similar fashion. Last night, the 11-time Grammy Award winner kicked off night one of a two-night concert special, Long Story Short: Willie Nelson 90. The sold-out show features a long list of music legends, including Dave Matthews, George Strait, Chris Stapleton, Gary Clark Jr, and Kris Kristofferson, Nelson's sole surviving fellow Highwayman.

Ever the traveling performer, Nelson is showing no signs of slowing down. He released his 73rd studio album earlier this year and is heading back on the road as part of his Outlaw Music Festival Tour.