Ariana Grande is always showing love for the big divas, and her latest act of appreciation was on last night's Greatest Hits. The pop starlet performed a Whitney Houston medley during the ABC show's season finale in front of an energetic audience.

Ari chose two of Whitney's classic hits: “How Will I Know” from her 1985 self-titled debut album and “Queen of the Night" from 1993's multi-platinum The Bodyguard soundtrack. She channeled her inner '80s pop star, rocking retro sunglasses, silver thigh-high boots and crimped hair topped with a floppy bow and tousled bangs.

The Greatest Hits finale, which took place at Los Angeles' Microsoft Theater, also featured throwback-inspired performances from Adam LambertCéline DionJohn LegendNelly and Sheryl Crow.

Along with the TV appearance, Ariana Grande recently announced she joined the cast of NBC's Hairspray Live! and will also perform at iHeartRadio Music Festival next month.