
If she can mantain her iTunes lead she'll be #1 for sure
Gaga sold 231k last week (and her sales are stable) Let's say 200k this week (starting today) BTW is at 80% of E.T, that would mean that E.T main version could sell around 250k
And #50 sold around 38k last week, let's say 30k for E.T album version. (#55)
That would make around 80k more than BTW while the Airplay+Straming gap is around 63m