这个视频开头的歌是什么

http://v.youku.com/v_show/id_XMTk1OTA0MDA4.html 第一首哼哼的歌 谁知道告诉我 谢谢

Snoop Dogg - Signs (feat. Charlie Wilson, Justin Timberlake)[Chorus - Justin Timberlake (Uncle Charlie Wilson)]I'm not sure what I seeCupid don't fuck wit me!Are you telling me this is a sign?She's looking in my eyes, now I see no other guysAre you telling me this is a sign? (OHHH!!!)[Snoop Dogg]Don't think about it, boy leave her alone(Ooh wee!!) Nigga you ain't no G!She likes my tone, my colone and the way I roll, you ain't no G![Verse - Snoop Dogg]It's legit, you know it's a hitWhen The Neptunes and the Doggy Dogg fin to spitYou know he's in - tune with the seasonCome here baby, tell me why you leaving?Tell me if it's weed that you needingYou wanna breathe? I got the best weed minus seedsAin't nobody tripping VIP they can't get inIf something go wrong then you know we get to Cripping[Chorus - Justin Timberlake]I'm not sure what I seeYou better don't fuck wit me!Are you telling me this is a sign?She's looking in my eyes, now I see no other guysAre you telling me this is a sign?[Snoop Dogg]Don't think about it, boy leave her alone(Oh ohhh!! yeah!) Nigga you ain't no G!She likes my tone, my colone and the way I roll, you ain't no G![Verse - Snoop Dogg]Now you stepping wit a G, from Los AngelesWhere helicopters got cameras, just to get a glimpse of our ChucksAnd our Khakis and our bouncer carsYou wit you friend right? (yeah)She ain't trying to bring over no men right? (no)Shiieet, she ain't gotta be in the distanceShe could get high all in an instant[Chorus - Justin Timberlake]I'm not sure what I seeYou better don't fuck wit me!Are you telling me this is a sign?She's looking in my eyes, now I see no other guysAre you telling me this is a sign?[Snoop Dogg]Don't think about it, boy leave her alone(Oh ohhh!! yeah!) Nigga you ain't no G!She likes my tone, my colone and th