J-Lo has been accused of hijacking the younger singer's 'vision' amid claims her new single On the Floor closely resembles DeLuna's song Party O'Clock.
And Lopez is even accused of copying DeLuna's leopard-print wardrobe in her own music video.
DeLuna, 23, poked fun at the situation by wearing a Trademark sign T-shirt as she arrived at Manhattan's trendy Juliet Supper Club on Thursday night.
Earlier this week DeLuna addressed the claims saying: 'I've seen this before, where the more established artist tries to take the vision and artistic ideas away from an emerging artist, and assumes no one will notice because of their bigger shadow.'