Seven tracks selected for the album were number-one hits on the Billboard Hot 100: "Love the Way You Lie", "Just the Way You Are", "Firework", "Raise Your Glass", "We R Who We R", "Only Girl (In the World)" and "Like a G6".

37 debuted at number one on the Billboard 200 albums chart with first week sales of 151,000, the biggest week for any US-released Now album since Now!

31 started at number one with 169,000 in July 2009.

[2] With several number-one pop hits, Andy Kellman of Allmusic calls Now!

37 "one of the most enjoyable Now volumes of the last few years.