Neil Patrick Harris & Cobie Smulders: CBS Fall Premiere Party!

Neil Patrick Harris suits up for the CBS 2012 Fall Premiere Party held at the Greystone Manor Supperclub on Tuesday (September 18) in West Hollywood, Calif.

The 39-year-old actor was joined by his How I Met Your Mother co-star Cobie Smulders and Made in Jersey star Janet Montgomery.

PHOTOS: Check out the latest pics of Neil Patrick Harris

How I Met Your Mother will return for its eighth season premiere on Monday (September 24) at 8/7c on CBS!

FYI: Cobie is wearing a Temperley dress and Jimmy Choo shoes.

10+ pictures inside of Neil Patrick Harris and others at the CBS 2012 Fall Premiere Party…