Paul McCartney will shut down traffic again -- this time in Los Angeles on Monday, September 23rd. The former Beatle will play a free concert in Hollywood as part of his appearance on ABC's Jimmy Kimmel Show, with USA Today reporting a "one quarter-mile of Hollywood Boulevard will be shut down for the expected record-breaking crowds." McCartney, who'll release his latest album, titled New, on October 15th, will chat with Kimmel in-studio before playing live on Hollywood Boulevard. The following night, Kimmel will welcome Justin Timberlake, who'll also perform outdoors. Back in 2009, McCartney played a similar type of gig when he appeared on CBS' The Late Show With David Letterman and performed a set on top of The Ed Sullivan Theater's marquee.