Photos of Gwen Stefani, Gavin Rossdale, Kate Bosworth, Leonardo DiCaprio at Global Green Party

The celebrities are flocking to LA before a party-filled Oscar weekend including last night's Global Green bash. Earlier, Jake Gyllenhaal planted trees to kick off the initiative to help green schools. Gavin Rossdale performed some of his hits, including "Glycerine," while Gwen Stefani watched from the audience. He talked about bringing Kingston on tour saying, "I take Kingston for as long as he wants, so I try to drum that into him: 'Are you ready to go on tour? Are you ready to go on tour?' It's going to be fun!" Later Sheryl Crow brought Gavin back on stage to sing with her as well. Also in the audience was eco-loving Leonardo DiCaprio, Kate Bosworth, and Neil Patrick Harris among others. The weekend is just starting to heat up, so don't forget to fill out your ballot before Sunday as we enjoy all the pre-Oscar celebrations.

To see more photos including Rosario Dawson, Tyrese Gibson, Kevin Connolly, and others just read more.

Images include: Benjamin Mckenzie, Dominic Monaghan, Gavin Rossdale, Heather Graham, Kate Bosworth, Kevin Connolly, Leonardo DiCaprio, Maria Menounos, Neil Patrick Harris, Rosie Perez, Sheryl Crow, Tyrese Gibson, Jamie King, Rosario Dawson, James Cromwell, Chris Pine, Gwen Stefani

Source, Splash News Online, Fame and Source