EXCLUSIVE

Eminem got an offer he COULD refuse -- an offer to sing at the NFL Owners Party during Super Bowl week that did not meet his price -- $2 MILLION!

Sources connected to the party tell TMZ ... reps from the event were looking for a headline act for the party that followed the dinner, which will be attended by 1,500 lucky folks. When Eminem's agents laid out the financial terms, we're told the owners group passed.

We're also told the owners were interested in Kanye ... but his fee was too high as well. As one source put it, "It was $1 million, plus plus plus a lot of other perks."

In the end, we're told the group settled on Janelle Monae, who's going for a very reasonable $150K. In the end, we're told the group settled on, who's going for a very reasonable

There will be a slew of singers performing at various events in NYC during Super Bowl week. We're told DJs are the big thing ... and the big ones are going for between $750K and $1 million.