Tires won't just do it in a day, but they can get noisier over time, like the Falken's on my 250. Horrid tire.
As you're going down the road and you hear the noise, try to maintain that speed until you go through some sweeping turns. If you've got a wheel bearing on it's way out, it should get noticeably louder on the side that's taking force in a turn.
Left turn noise -> Right WB
Right turn noise -> Left WB
Jack up one side front tire. Grab it at the top and bottom, and push/pull. Try and rock it back and forth. If you've got any play in the wheel, you've found your culprit.
If it's a GM truck with 60k or more miles, it's the wheel bearing.