Story highlights Skywriters at Rose Parade: "America is great! Trump is disgusting,"

It is not yet known who was behind the jab at the GOP front-runner

(CNN) Skywriters stole the show at the 127th Rose Parade in California on Friday, dashing out a message for Donald Trump just as the last float left the gate.

"America is great! Trump is disgusting," were the words dotted clearly across the sky on what appeared to be a mostly cloudless morning.

Sportswriter Molly Knight also caught this image, of the words, "Anybody but Trump."

Skywriting over Rose Bowl right now: AMERICA IS GREAT. TRUMP IS DISGUSTING. ANYBODY BUT TRUMP. #gostanford pic.twitter.com/GYtTOfS5kN — Molly Knight (@molly_knight) January 1, 2016

CNN's Sara Sidner, who is on site in Southern California, counted six skywriting planes.

The Huffington Post's Ariel Edwards-Levy, tweeted she saw a link also written in the sky to a site called Anybodybuttrump.us, which uses the same language as the message as seen over the parade route.

Skywriting cont: "Anybody but Trump. Trump loves to hate. Anybodybuttrump.us Iowans dump Trump." pic.twitter.com/b0cm5ypdrQ — Ariel Edwards-Levy (@aedwardslevy) January 1, 2016