 In North America, the song only managed to peak at 49 on the main Billboard chart in the U.S. on the issue of 24 February 2007 and spent 12 weeks on the chart.On the same week, it climbed to 29 on the Hot Digital Songs and, later in May, reached 35 on the Pop Songs chart and 20 on the Hot Adult Top 40 Tracks.Despite its low position, "Smile" managed to slowly sell over 500,000 copies in paid digital download and was certified Gold by the Recording Industry Association of America on 9 February 2009; it remained Allen's highest-charting single in the country until "5 O'Clock" which featured Allen, peaked at number 10 in 2011.