This post has been corrected. See the note below for details.
Shakira may be warming back up to Antonio de la Rua after reports that the global pop star popped into her ex-boyfriend's 38th birthday party in Uruguay over the weekend.
The couple called it quits in August after 11 years together, but the "Waka, Waka" singer didn't go public with the news until January.
"Since August 2010, we made a mutual decision to take time apart from our romantic relationship," the singer wrote on her blog. "Throughout this time we have continued to work together hand in hand, have remained close and have kept the details absolutely private until now.
"We view this period of separation as temporary and as a time of individual growth as we continue to be partners in our business and professional lives," she wrote. "Our friendship and understanding of one another is unwavering and indestructible."
The Colombian-Lebanese "She Wolf" has since been dating FC Barcelona soccer star Gerard Piqué, right.
However, Shakira, who was on tour with her "Sale el Sol" album, headed for a Tuesday concert in Asuncion, Paraguay, is said to have coordinated with De la Rua's parents -- former Argentine President Fernando de la Rua -- and brother to attend the Sunday party for 100 guests at De la Rua's ranch in Punta del Este, Uruguay. He is said to have been assisting with her concert.
Celestrellas reports that the couple was "very warm toward each other, affectionate and close, embracing on more than one occasion, caressing, smiling and whispering secretly in each other's ear."
Watch out, Gerard ...
For the record, 11 a.m. March 12: This post originally placed the city of Asuncion in Uruguay. It is the capital of Paraguay. Thanks to commenter @Adrian for flagging the gaffe.
-- Nardine Saad
Top photo: Shakira performs at a concert at the Pop Festival in Paraguay on March 8. Credit: Pablo Burgos / AFP / Getty Images
Right photo: Gerard Pique reacts during the international friendly soccer match against Colombia at Santiago Bernabeu stadium in Madrid. Credit: Emilio Naranjo / EPA