Olivia Rodrigo celebrated her 19th birthday on Sunday night at a party with BFF Iris Apatow, plus Iris' new boyfriend Ryder Robinson (who…

Olivia Rodrigo Had BFF Iris Apatow By Her Side at 19th Birthday Party!: Photo 1339265, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid Laroi Pictures

Olivia Rodrigo Had BFF Iris Apatow By Her Side at 19th Birthday Party!: Photo 1339229, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid Laroi Pictures

Olivia Rodrigo Had BFF Iris Apatow By Her Side at 19th Birthday Party!, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid Laroi

Just Jared on Instagram: Olivia Rodrigo celebrated her 19th birthday on Sunday night at a party with BFF Iris Apatow, plus Iris' new boyfriend Ryder Robinson (who is Kate Hudson's son!). Lots

Olivia Rodrigo Dresses as a Sexy Cowgirl at 19th Birthday Party with BFF Iris Apatow, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid LAROI

Olivia Rodrigo Had BFF Iris Apatow By Her Side at 19th Birthday Party!: Photo 1339256, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid Laroi Pictures

Olivia Rodrigo Dresses as a Sexy Cowgirl at 19th Birthday Party with BFF Iris Apatow: Photo 4709630, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid LAROI Photos

Olivia Rodrigo Had BFF Iris Apatow By Her Side at 19th Birthday Party!: Photo 1339222, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid Laroi Pictures

Just Jared on Instagram: Olivia Rodrigo celebrated her 19th birthday on Sunday night at a party with BFF Iris Apatow, plus Iris' new boyfriend Ryder Robinson (who is Kate Hudson's son!). Lots

Olivia Rodrigo Had BFF Iris Apatow By Her Side at 19th Birthday Party!: Photo 1339269, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid Laroi Pictures

Olivia Rodrigo Had BFF Iris Apatow By Her Side at 19th Birthday Party!: Photo 1339239, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid Laroi Pictures

Olivia Rodrigo Dresses as a Sexy Cowgirl at 19th Birthday Party with BFF Iris Apatow, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid LAROI