Here's a list of songs from performers featured on ESPN’s Sunday NFL Countdown, along with links to the artists’ websites and links for you to download and buy the songs and/or albums:
TI and Iggy Azalea: "No Mediocre" single.
X Ambassadors: "Jungle ft. Jamie N Commons" from "The Reason" EP. (iTunes | Amazon)
Taylor Swift: "Shake it Off" from "1989" album. (iTunes | Amazon)