Jessica Biel's brother has taken a swing at American singer Justin Timberlake, over two videos in which he claims the latter is guilty of not promoting his own liquor brand. Justin Biel, the younger brother of American actress and model Jessica Biel, used to work for Timberlake's 901 Tequila brand.

In videos posted on his Facebook page, Biel states: I've been waiting for (Timberlake) to do something with this f**king brand - make a song about it, put it in a god damn video, hold it up, take some pictures, I don't care - just do something because we're dying on the motherf**king vine here!

The slogan idea Biel came up with was: 901 Tequila... so god damn exclusive our own CEO doesn't even drink it.

Representatives of the brand have dismissed rumors of a feud, claiming the clips are part of an upcoming viral advertising campaign that was leaked without authorization.