Photos and videos shared from the party show Rihanna joining children under the slime waterfall, wearing protective plastic as fans cheered. Guests sang happy birthday to RZA and an elaborate cake featured a large number "4" alongside a fondant bucket of slime.
Rihanna, 38, and A$AP Rocky, 37, arrived in matching neutral tones with their three children — RZA, 4; Riot, 2; and baby Rocki, 8 months. Rihanna accessorized with oversized sunglasses, white ballet flats and a brown purse, while Rocky wore a camel trench, gray tee, black jeans and combat boots. The pair previously hosted RZA’s second birthday at the Color Factory in 2024.