It was the record heard around the world. After a four-year hiatus, Adele returned to the spotlight with a behemoth of an album called 25. By no means a pity party, the U.K. soulstress has matured (shout out to motherhood) and faces the growing pains of adulthood with pitch perfect vocals and flawless eyeliner. Scroll through the credits for 25, though, and the roster of talent behind the LP proves that teamwork makes the dream work. Say hello to the key figures in Adele's songwriter and producer squad for 25 below.