The boys of Sterling Cooper advertising agency are back! In preparation of the upcoming installment of “Mad Men,” the hit AMC drama has released a promo video teasing the second half of the series’ final season. Part 2 of Season 7, titled “The End of an Era,” will premiere Sunday, April 5.

The 30-second trailer, which features Diana Ross’ hit single “Love Hangover,” gives viewers a glimpse of their favorite characters through a slideshow format . Fans can see Peggy (Elisabeth Moss) enjoying a cocktail, Betty (January Jones) having a smoke and Don (Jon Hamm) walking coolly throughout a party during “The Party’s Over” trailer.

When audiences last saw Don in the Season 7, Part 1 finale, “Waterloo,” he was having a bit of a meltdown. He nearly lost his job due to a “job breach,”as well as his wife Megan (Jessica Paré), who was jonesing for for a divorce. Don was also forced to face the death of Bert (Robert Morse), one of the founders of Sterling Cooper. Episode 7 concluded with Don breaking down in tears after Bert had performed a musical number to “The Best Things in Life are Free.”

“Mad Men” will return to AMC with Part 2 of the final season on Sunday, April 5. Sound off in the comments section below with your predictions for episode 8 of Season 7.