The first two in a series of Ultimate Grammy Collections have been released by The Recording Academy partnered with Shout! Factory. Contemporary R&B and Contemporary Pop debuted this week with more sets to follow, including Classic Country and Contemporary Rock.

The new seven-disc series commemorates the 50th Celebration of the Grammy Awards. A portion of the proceeds will benefit the MusiCares Foundation and The Grammy Foundation–the two charitable arms of The Recording Academy.

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