<p><br /> Lady GaGa and Justin Bieber are racing towards their one-billionth viewing on YouTube.<br /> </p><p><br /> Gaga averages about two-and-a-half-million views per day with Justin averaging just under four-million but as GaGa had a headstart, it looks like she may hit the milestone first.<br /> </p><p><br /> According to data from TubeMogul, Gaga will get her billionth hit October 20 with Bieber not far behind, on course for November 1.<br /> </p><p><br /> Both artists are way ahead than any other acts, with Michael Jackson being the closest with 600 million views.<br /> </p><p><br /> Meanwhile GaGa and Justin are are also competing for the most watched promo with their clips for Bad Romance and Baby.<br /> </p>
