Rose Robin
On a recent camping trip I went in with one birding objective, see a Pink Robin! Ultimately I failed in that quest but I didn't come out completely empty handed because I managed to the closely related Rose Robin who is just as cute.
The main difference is how the pink plumage doesn't extend as far down the body.
You would think that highlighter pink plumage would stand out in the middle of the forest, but I still struggled to spot him when he was about 10 meters away.

Unfortunately I didn't get many pictures of this vibrant one so this is all I have to show