Billie Eilish performed "Birds of a Feather" with her brother Finneas O'Connell on acoustic guitar.

The stage was transformed into a heavenly, cloudy atmosphere to match the upbeat and dreamy nature of the song. The set featured blue sky-themed walls and ceiling, a choice that delighted fans who had visualized a similar setting for the track. The interior of the box was projected with a bright, cloud-filled blue sky, matching the breezy and airy tone of the song. Eilish wore a pair of 2005 Nike Dunk Low Premium sneakers. The shoes feature a "Tartan Red Plaid" pattern and were a vintage Japan-exclusive release, making them very rare. The box structure had a transparent floor, which allowed a camera underneath to capture the soles of Eilish's shoes. The title of her album, Hit Me Hard and Soft, was written on the bottom of her shoes.

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