The event, Stamford Bridge: Remastered, included a performance by Brit nominee Ellie Goulding and was a chance for events professionals to view the venue.
Under the Bridge can accommodate up to 600 standing or 300 for dinner and is designed for showcases, fashion shows, concerts, photo shoots and product launches.
Guests viewed the industrial interior, which features a gallery of 1,600 rare photographs showcasing the UK’s musical history on 3 March.
The venue features two large bars, on site catering and 720sqm of floor space.
The 1,400sqm Great Hall in the West Stand, meanwhile, was transformed to display each area of Chelsea FC’s event business, including an example hotel bedroom, spa treatment room, a mini Marco Pierre White restaurant and a sample match day hospitality area.
Chelsea FC head of venue Simon Hunter said: "Not only does this add to our portfolio for events but it also highlights our fantastic facilities on site. We feel we are now London’s most complete venue, and with such positive feedback on the night we look forward to using the space for memorable events for our clients".
Stamford Bridge has 21 event spaces including the Great Hall, 60 syndicate rooms, 281 bedrooms in two hotels, four restaurants and bars including two by Marco Pierre White, and a club and spa, The Chelsea Club.