Paul McCartney Plots More U.S. 'Out There' Tour Dates

Update: Paul McCartney has announced more dates. Scroll down to see the latest additions, which are bolded.
Even after nearly 60 years as an active musician, Paul McCartney is still one of the most prolific touring artists. The former Beatle just announced his first U.S. arena date of 2015: Philadelphia's Wells Fargo Center...