Vanilla Ice was the artist most clearly carrying the Freedom 250 / America 250 concert lineup in the coverage I found, and he publicly said he hoped to perform and defended doing the show.

What the reports say

  • Coverage from early June said Vanilla Ice hoped to perform at the Trump-announced DC rally tied to the 250th celebration.
  • A separate report quoted him defending the decision and saying he was in favor of unity and performing at the Freedom 250 concert.
  • Later coverage suggested the event’s original concert plans were collapsing as more artists dropped out, and the program was replaced by a rally.

Current read

If by “who is carrying” you mean who is still attached to the event , the name most consistently tied to it is Vanilla Ice.

If you mean who is headlining after the lineup fallout , the reporting says Trump himself took over the event format with a rally.

[1][7]
QuestionBest-supported answer
Who seemed attached to the concert?Vanilla Ice
Who ended up “carrying” the event overall?Donald Trump, after the concert shifted into a rally
TL;DR: **Vanilla Ice was the main performer name tied to the concert, but the event itself appears to have shifted into a Trump rally.**