Singer and "The Voice" star Adam Levine is reportedly apologizing to his ex-girlfriends as he gets set to marry model Behati Prinsloo next month. The 35-year-old Maroon 5 frontman apparently wants to go into his marriage with a "clean slate."

Here's more from the US Weekly report:

"He apologized for how he treated them," the insider says of the model-loving Voice mentor, whose former flames include catwalkers Anne Vyalitsyna and Nina Agdal. (Levine famously ended his months-long fling with Agdal by ignoring her calls and then breaking the news of his and Prinsloo's engagement via text message.)

Another source tells Us, however, that the ladies aren't quite so keen to let him off the hook. "They couldn't care less he wants to make it right," the second insider says.

On Outnumbered this afternoon, we heard some reaction from the panel, including #oneluckyguy Bernard McGuirk, who doesn't believe these girls want to hear from Levine "unless he's sending a check."

This topic led to an entertaining discussion about the trail of broken hearts left behind by Kimberly Guilfoyle (a lot, according to Ainsley Earhardt), Harris Faulkner and Kirsten Powers.

Watch it all above.