Tori LaConsay, painted a billboard in the US with the message You Look Nice Today to make residents in her town feel good about themselves.
A couple of days ago, she realised that H&M were selling towels, pillows and doormats with a similar design.
One message written in support of Tori LaConsay, from Georgia, Atlanta, said: "Your You Look Nice Today rug and pillow design has been stolen."
H&M's initial response denied copying the artwork: "H&M apologises if anyone thinks we have copied, which has never been our intention and not allowed.
"We have merely been inspired after seeing many different varieties of different text messages, to create something similar in a different font, with the use of the big and small brackets and the placement of the heart.
Read more here.