Leonardo DiCaprio and Cameron Diaz at TAG Heuer Event

"It’s a Gangs of New York reunion!

Leonardo DiCaprio makes his first appearance since his split with girlfriend Erin Heatherton at an event for TAG Heuer on Saturday evening (November 10) in New York City.

The 37-year-old actor helped his former co-star Cameron Diaz celebrate the launch of her limited edition signed watch at the event which raised money for the UN Women and New York Cares’ Hurricane Sandy relief effort."

(SOURCE: http://www.justjared.com/2012/11/11/leonardo-dicaprio-tag-heuer-event-with-cameron-diaz/)

Leonardo DiCaprio and Erin Heatherton bike ride

"After a lengthy 10 month relationship, Leonardo DiCaprio and Erin Heatherton are calling it quits.

The "Inception" star and the Victoria's Secret Angel reportedly "split a few weeks ago" according to an Us Weekly source. "There's no bad blood -– they still care about each other a lot.""

(SOURCE: http://celebrity-gossip.net/leonardo-dicaprio/leonardo-dicaprio-and-erin-heatherton-part-ways-754554)