Adele might even reach 2 million first week in the US. The fact she's smashing singles records, when she is primarily an album seller, is indicative that there's no limit for 25. This is uncharted territory. I'm excited to see what happens. But I can't see her outselling 21. I think she'll do 20 million sales in total, and might even manage a million sales first week in the UK, which would be an all time record. Currently the record is Oasis' Be Here Now which shifted 700,000 in 1997.