Actress Jennifer Lopez arrives at the premiere of Lionsgate's "What To Expect When You're Expecting" held at Grauman's Chinese Theatre on May 14, 2012 in Hollywood, California. Credit: Kevin Winter/Getty Images

July is not a great month for Hollywood's super couples. This time last year -- July 15, to be exact -- Jennifer Lopez and Marc Anthony announced the end of their seven-year marriage.

Which is why Lopez, nearly 43, can easily relate to this summer's colossal split: Tom Cruise and Katie Holmes.

"I heard about it when I was in South America and I was stunned," the singer and designer told Entertainment Tonight on Thursday of Cruise, 50, and Holmes, 33, parting ways after nearly six years of marriage.

"I'm sad for them," says Lopez, who shares twins Max and Emme, 4, with Anthony, 43. "They're both really lovely people, and just like Marc and I, it's not what you want to happen. You fight and you try until you realize you can't anymore."

The star (who is not expected to return the the judges' panel on American Idol) also expressed good wishes for the couple's daughter, Suri, 6 -- plus Cruise's children with Nicole Kidman, Isabella and Connor.

"I just wish them peace in their decision. And really for Suri and their other children as well, because you become such a family, it's not just Suri, it's Connor and Isabella and everybody, you know, you all become a family . . . And when that breaks apart, nobody wins; everybody's heartbroken in some way. And I just wish them peace."