The latest celebrity voice calling out turn-by-turn directions in Waze is none other than Stephen Colbert. You'll be able to hear Colbert — set to debut on The Late Show on September 8th — until September 22nd. Yeah, it's an obvious promotion and press move, but it's a fun one if you're a Waze user. And it turns out there are many of those. "For years, I navigated the roadways using a compass, a sextant and the guidance offered by the stars," Colbert said in a statement. "But now I can just listen to my own dulcet tones instructing me on Waze." Waze is also adding Neil Patrick Harris and Rob Gronkowski of the New England Patriots as other voice options.

In other, probably-more-useful news, Waze has also recently added a feature that will alert drivers when they approach accident-prone or generally dangerous intersections. The company has gathered data from five major cities and will warn you if you approach a roadway that's got a reputation for high collision rates, high injury rates, or frequent accidents involving bikes or pedestrians. Boston, Los Angeles, New York, San Francisco, and Washington, DC are the first cities to help make Waze a bit safer in this way.