Conversation so far:
What tours did the band Powderfinger go on for their song My Happiness?
North America tour with British rock group Coldplay
What years did Powderfinger tour North America with British rock group Coldplay for their song My Happiness ?
Was the My Happiness Powderfinger North America tour with British rock group Coldplay successful?
How was the songMy Happiness by Powderfinger promoted?
My Happiness was put on heavy rotation by Los Angeles radio station KROQ-FM two months prior to its United States release.
In what other ways was My Happiness by Powderfinger promoted besides being put on heavy rotation by Los Angeles radio station KROQ-FM two months prior to its United States release?
The band also did free promotional shows leading up to the release of My Happiness.
Was My Happiness by Powderfinger promoted elsewhere besides the free promotional shows leading up to the release of the single?
In Europe, My Happiness received approximately four weeks of airplay on German music video program Viva II, and the band sold out for three nights in a row in London.
Is there any fascinating about the tour or promotion besides the approximately four weeks of airplay on German music video program Viva II, and the band selling out for three nights in a row in London?
My Happiness peaked on the Hot Modern Rock Tracks, making it the first Powderfinger song to appear on a Billboard chart.

Question: What number did it reach on the chart?
Self-contained rewrite: What number did My Happiness by Powderfinger peak on the Hot Modern Rock Tracks and on the Billboard chart?