Lady Gaga performed at Harper's Bazaar's ICONS celebration at The Plaza in New York on September 5, 2014. Contemporaneous reports from Harper's Bazaar, Fashionista and the Associated Press place her at the exact hotel and describe the completed performance.
Celebrity Hotels classifies this as a verified event relationship with evidence grade B. The sources establish that Gaga attended and performed at the hotel. They do not establish that she booked a room or stayed overnight.
What Harper's Bazaar documented
Harper's Bazaar published its account on September 6, the day after the event. The magazine says its ICONS celebration took place at The Plaza Hotel and identifies Lady Gaga among the featured guests. Its event coverage also documents the live jazz performance.
As the event organizer's own account, this directly establishes the venue, date and Gaga's participation. The accompanying event gallery supplies a visual record, while the written report keeps the property identity explicit.
Independent contemporary reporting
Fashionista separately reported from the celebration, describing the black-tie gathering in The Plaza's ballroom on Friday night. Its account says Gaga treated the crowd to a jazz performance.
The Associated Press also reported on September 6 that Gaga performed jazz songs at The Plaza Hotel during Harper's Bazaar's New York Fashion Week party. This is independent confirmation of the same person, property and activity rather than a repeated inference from a city sighting.
Exact property identity
The venue is The Plaza Hotel at 768 Fifth Avenue in New York. The hotel's official meetings and celebrations page identifies that address and the Grand Ballroom among its event spaces. That identity matches the existing Celebrity Hotels record for The Plaza New York and its booking target.
The contemporary sources consistently name The Plaza Hotel. There is no sister-property substitution, former-name ambiguity or conflicting city in this match.
Why this is an event—not a stay
Performing at a hotel function does not establish accommodation. None of the qualifying reports says that Gaga checked in, occupied a guest room or slept at The Plaza.
The relationship is therefore recorded at the narrowest supported level: Gaga attended and performed at an event inside the hotel. No stay is added to the legacy celebrity-hotel accommodation mapping.
What the evidence establishes
The evidence establishes that Lady Gaga was physically present at The Plaza on September 5, 2014 for Harper's Bazaar's ICONS party and performed jazz for the attendees. The organizer's account and two independent contemporary reports agree on the exact venue and completed event.
The evidence does not establish a room, suite, reservation, check-in, checkout, rate, payer, booking channel, length of accommodation or repeat hotel preference. No source photograph has been copied into this article.
Why this receives grade B
Evidence grade B requires direct evidence from at least two independent reputable publishers. Fashionista and the Associated Press independently identify Gaga, The Plaza and the performance, while Harper's Bazaar's own event record provides additional direct support and recognizable visuals.
The grade applies only to the event relationship. It does not convert hotel presence into an overnight stay.
Evidence verdict
Verified: Lady Gaga attended and performed at Harper's Bazaar's ICONS event at The Plaza on September 5, 2014.
Relationship type: Event.
Not verified: An overnight stay, guest room, reservation, check-in, checkout, rate, payer, booking channel or continuing hotel preference.
This is a new exact-property event combination between an existing celebrity and an existing hotel, kept separate from the public stay mapping.