PURCHASE, New York: PepsiCo has unveiled its new logo (pictured), based on the theme of a "smile". Versions of the new insignia will now be used across the Diet Pepsi and Pepsi Max variants of its eponymous cola brand.

As previously reported, Omnicom's self-titled "brand and product invention company" Arnell redesigned the logo as part of a $1.2bn (€906m; £704m) scheme announced by PepsiCo's chairman/ceo, Indra Nooyi.

The logo will represent a "grin" on cans and bottles of Diet Pepsi, and a "laugh" on Pepsi Max products.

The London office of WPP Group's brand design consultancy Landor Associates is also thought to be reworking the packaging of PepsiCo's juice brand Tropicana.

According to Nooyi, the investment in the company's brands is necessary "in large part because the economic slowdown continues to pressure the North American liquid refreshment beverage category."

Data sourced from mad.co.uk; additional content by WARC staff