"Shouldn't be used to get even (with) bad bosses or hated ex's", he tweeted, hours after Lauer was sacked for what NBC News called "inappropriate sexual behavior".
Tomorrow is my birthday.
In the 26-year-old interview, Midler told Walters, "I did not offer myself up on the altar of Geraldo Rivera". In a tweet on Wednesday, talk show host Geraldo Rivera praised and defended Lauer's character while describing news as "a flirty business".
Midler's recount of the incident to Walters was in response to Rivera's 1991 memoir, Exposing Himself, in which he claimed he and Midler had a consensual sexual affair, and that Midler was "insatiable".
Rivera was quickly and roundly criticized for his bizarrely timed comments.
In his tweet, Rivera said he recalls the event "much differently" than Midler and apologized for, "in the very least, publicly embarrassing her all those years ago". Lauer, who is married, allegedly gave a colleague a sex toy as a present, which included an explicit note about how he wanted to use it on her.
In a tweet posted Thursday by Midler, and confirmed by her publicist, the actress-singer called on Rivera to apologize for an assault she said occurred four decades ago. They broke two poppers and pushed them under my nose and proceeded to grope me'.
Rivera, a former TV host and Fox News correspondent, was defending Lauer, who was sacked from NBC after the reports of inappropriate behaviour became public. "He was ... he was unseemly".
She also tweeted "Me too", in support of sexual harassment victims around the world, and started gaining traction after ex-Hollywood mogul Harvey Weinstein was revealed to be exerting inappropriate behaviour on women who wanted to appear in his films. "Shouldn't be used to get even w bad bosses or hated ex's".
"Sad about (Matt Lauer) great guy, highly skilled (and) empathetic (with) guests (and) a real gentleman to my family (and) me", he wrote. Reiterating the "flirty" nature of the news business, Rivera argued that many newsroom courtships have led to happy marriages.
Such allegations, he said, should be "confined to situations" in which a superior harasses a lower-ranking employee, who is anxious about reporting it because of the "feared consequences to victim's employment".