Gaga being bigger than Rihanna in South America is such an ATRL myth

I've lived both in Argentina and Uruguay and Rihanna is the biggest 'pop girl' here by FAR.
The thing is that people here don't buy music, they either use YouTube or radio to listen to it and Rihanna is literally SPAMMED on the radio all the time.
Gaga during her peak was massive, everyone talked about her having a penis (

) and Born This Way was everywhere but since then, she vanished into thin air,
You still hear Rihanna's songs on the radio all the time.