"overly popular" is correct and usable in written English.
You can use it to describe something that is too popular in comparison to other things of its kind. For example, "This restaurant has become overly popular in recent months, making it difficult to secure a reservation."
But it was not overly popular and it wasn't adopted".
If we think we need to stuff the autumn full of overly popular things we'll fail.
Nor is he overly popular, given the multiple cases of domestic violence against him.
Jabra have a long history of making good but not overly popular Bluetooth headphones.
The program appealed to me, but it wasn't overly popular because you could get a master's degree in the same amount of time.
By the end of the '70s, however, the coupling of manual processes and grid-based serial repetition had become an overly popular shtick in contemporary sculpture.
Do not wish that you had a different girl's name, like the overly-popular Ashley, because this makes you 'one of the crowd'.
Specifically, pipeline corrosion cannot be modeled using popular but overly conservative linear corrosion growth models.
He points to one woman in a hijab wearing blue jeans and those overly thick-soled shoes popular among American teenagers.
Depression Modern-style diners and movie theaters, White Castle hamburger restaurants, old farmhouses and train stations, funky and tawdry commercial signs -- these have become overly familiar objects of popular connoisseurship.
The basis of Lorie Novak's elaborate project, of which the work at Wesleyan is just a piece, is family photographs, an overly familiar form of popular art that Ms. Novak has, through contemporary technology, elevated to a richly high level.
