However, the support for his sweetheart didn't stop there, as Slater also posted a picture of the two-time Grammy Award ...

Ariana Grande and Ethan Slater made a rare joint ... the clinical psychologist recalled moving both herself and their then two-month-old baby boy to London while Slater filmed Wicked.

Ethan Slater was noticeably absent from Sunday’s Golden Globes, where girlfriend Ariana Grande ... The “The Boy Is Mine” singer went full Glinda the Good Witch in a silky baby-pink dress ...

The “the boy is mine” singer went full Glinda the Good Witch in a silky baby-pink dress with a matching shawl. She accessorized the look with a fabulous diamond necklace, diamond studs ...

Monica praised Ariana Grande for making the 'Boy Is Mine' Remake 'something of her own' instead of doing a straight sample.

Brandy and Monica open up to PEOPLE about working together Ariana Grande's Grammy-nominated "The Boy Is Mine (Remix)" ahead ...

Ariana Grande and Sean Hayes spoke highly of Grande's boyfriend on 'SmartLess' after Hayes noted that he and Slater struck up ...