Aussie diva Kylie Minogue recently announced she's releasing a duet with Chinese pop sensation Jolin Tsai. Searches on both singers immediately surged, proving that, when it comes to buzz, two is better than one.

Interest in the crooner from Down Under jumped an impressive 646%, while searches on Ms. Tsai nearly doubled. Related queries on "kylie jolin duet," "kylie minogue album," and "jolin tsai pics" also provided booming buzz.

In the spirit of harmony, we looked up the top "duet" searches from the past seven days. Are two voices really better than one? Here's what we found...