This looks totally wrong but I don't know, here are my first estimates for this week
1. Katy Perry - Part of Me: 394451
2. Whitney Houston - I Will Always Love You: 310087
3. Adele - Rolling In the Deep: 299743
4. ADELE - Set Fire to the Rain: 225112
5. Fun. - We Are Young: 199130
6. ADELE - Someone Like You: 197565
7. Kelly Clarkson - Stronger: 187594
8. Nicki Minaj - Starships: 146343
9. Chris Brown - Turn Up the Music: 139854
10. Coldplay - Paradise: 132390
1 Katy Perry - Part of Me 1.0000
4 ADELE - Set Fire to the Rain 0.5596
shes pushing Adele towards 50%
She needs to sell almost 130k more than Adele to asure a #1 debut on Billboard... Considering she sold 95k in the first day, her sales would be more than 300k. If the gap between her and Adele remains the same and she keeps on gettin bigger radio updates than Adele, then it'll debut at #1