Photo of Ray Liotta & Jennifer Lopez in 'Shades of Blue,' by Peter Kramer

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As Jennifer Lopez prepares for the debut of her new cop drama Shades of Blue, the singer-actress on Sunday shared the intense first trailer, which gives viewers a look at her character Harlee Santos, an FBI agent who blurs the lines between good and bad cops.

Lopez will co-star with Ray Liotta in the 13-episode series, which will premiere Jan. 14 on NBC, likely days after the final season of American Idol premieres on Fox.

The Shades of Blue trailer, which features singer-songwriter LP's new single "Muddy Waters," is expected to premiere tonight during NBC Sunday Night Football, but it can also be seen below.