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 1339256, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid Laroi Pictures

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

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 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

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

Olivia Rodrigo Had BFF Iris Apatow By Her Side at 19th Birthday Party!: Photo 1339232, 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 4709600, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid LAROI Photos

Olivia Rodrigo Dresses as a Sexy Cowgirl at 19th Birthday Party with BFF Iris Apatow: Photo 4709650, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid LAROI Photos

Olivia Rodrigo Had BFF Iris Apatow By Her Side at 19th Birthday Party!: Photo 1339272, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid Laroi Pictures

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 1339270, Iris Apatow, Olivia Rodrigo, Ryder Robinson, The Kid Laroi Pictures