B. B. King Style Lick by Jody Worrell is a free blues guitar video lesson. Arguably the most widely known name in blues, B.B. brought blues to the masses. His sweet tone, note selection, and vibrato are unmistakeable. Jody will start by teaching you how to play the lick and will then demonstrate it along with the backing track "Rainy Day Blues" from the Let's Jam! Blues & Rock Vol 3. For more instruction, check out Jody's B.B. King Style Solos premium lesson package.
Here is the tab for the lick

The B.B. King Style Solos Package by Jody Worrell features six downloadable guitar lessons. You will learn the timing, note selection, bends, vibrato, and famous "box position", that all combined to create King's unique phrasing. In each lesson, Jody will teach you how to play the solo with note by note instruction and then demonstrate it along with a backing track. The included lessons are B.B. King Style Solos 1 & 2, In the Style of B.B. King 1 & 2, and B.B. King Style Major Key Solos. Each lesson features a Quicktime video, .mp3 jam tracks, and a .pdf of the tabs. This package contains two hours of video instruction.