What's more, Ali has been experimenting with a chic new hairdo during her hosting duties this week - and she looks fabulous.
George Stephanopoulos' wife took to Instagram ahead of the show on Tuesday to share a photo of her rocking long blond hair, which had been styled in a high ponytail - world's away from her short bob.
Compliments soon followed after Ali shared a BTS video of her new look, with one writing: "So pretty," while another added: "You look fabulous!"
Ali has been on Live since the start of the week, filling in for Kelly alongside Ryan Seacrest - who is in his last season of the show, having announced his departure from the program earlier in the year.
Ryan will be replaced by Kelly's husband, Mark Consuelos, come April, when the new season of the popular show commences.
Ali, meanwhile, has been balancing a busy work schedule of late, as she gears up for the premier of her much-anticipated documentary, Pretty Baby, starring Brooke Shields.
Pretty Baby was produced by her and husband George's production company, Bedby8productions. The documentary was promoted by George's colleagues at GMA earlier in the year, with Lara Spencer reading out a description of it on the show.
"Pretty Baby looks at Brooke growing up in the public eye while reflecting on a society that 'objectifies women and girls'," she said. Lara added that in it, Brooke then looks back on her career "discovering and embracing her own identity and agency".
Speaking with People ahead of the documentary's release, Brooke confessed: "There's a lot in the documentary they did not know about."
She revealed she landed herself into some trouble with her teenage daughters,Grier, 16, and Rowan, 15, as a result, explaining: "They were mad that I didn't inform them about everything."
The documentary includes the bombshell revelation that she was sexually assaulted three decades ago by a powerful Hollywood executive. With both George and Ali being so close to Brooke, the documentary was no doubt an emotional experience for them all to make.
The celebrity couple often share photographs with Brooke on social media, and their families are incredibly close.
Read more HELLO! US stories here
Want to keep up to date with the latest stories?Sign up to our HELLO! Newsletters today.