On Tuesday, the CW aired the musical crossover episode of the Flash that included members of the cast of Supergirl. Even though the episode has already aired, the network is continuing to promote it with two new interviews with Jesse L. Martin and Carlos Valdes plus a behind the scenes featurette. Now that might be because you can purchase the songs from the episodes on iTunes for either $1.29 each or $7.99 for all of them including two versions of Running Home To You song by Grant Gustin. One is the orchestrated version from the end of the episode while the other is a guitar version.
The Flash airs on Tuesdays at 8 PM on the CW.