It's been awhile since we looked at iHeartRadio, the popular radio app available across devices and for the web. It was in October that the app went to v3.0 and received Mango support and a few days ago, version 4.1 hit the Marketplace bringing a nice make over with some bonus features on board.

Gone is the grey photo background and instead we have just pure black with red text. The UI now is much more minimalist and Metro, giving the app a fresh new bold look which we really like.

But the biggest feature is the addition of "custom radio" which is very similar to Pandora. You choose a station to create based on a song, artist or genre and iHeartRadio will select tunes based off of that criteria. You can then thumbs up/down songs and from that, refine your musical selection. Likewise you can still pull down lyrics, pin the station to your start screen and purchase/download tracks from the Zune Marketplace.