As an AI language model, my knowledge is up to date only until September 2021, and I cannot access real-time data. However, I can provide you with a list of popular pop suonerie gratis that were trending around that time. Please note that the popularity of ringtones can change rapidly, and newer ones may have emerged since my last update.
Top 10 Trending Pop Ringtones (as of September 2021):
"Blinding Lights" - The Weeknd
"Levitating" - Dua Lipa ft. DaBaby
"drivers license" - Olivia Rodrigo
"Peaches" - Justin Bieber ft. Daniel Caesar, Giveon
"Save Your Tears" - The Weeknd & Ariana Grande (Remix)
"Good 4 U" - Olivia Rodrigo
"Stay" - The Kid LAROI & Justin Bieber
"Montero (Call Me By Your Name)" - Lil Nas X
"Leave The Door Open" - Silk Sonic (Bruno Mars & Anderson .Paak)
"DÁKITI" - Bad Bunny & Jhay Cortez
Please keep in mind that this list is based on the music trends of 2021 and may not reflect the current trends in 2023. To find the most recent and up-to-date trending pop ringtones, I suggest checking popular music charts or music streaming platforms.