It's been 10 years since they were last together - Jessie, Woody, Buzz and new toy, Lots-O'-Huggin' Bear, look happy to be at the Premiere of their third film.
But it wasn't any old red carpet for these stars - they had a special Lego designed carpet to walk on!
And of course there was lots of waving to the hundreds of fans who turned up to see them.
To infinity and beyond! No, it's Leicester Square where Buzz meets his fans.
Jessie laps up being a celebrity, here signing autographs.
This boy made a special effort, dressing up as his favourite character - I wonder who that would be!