Queens unite! Reese Witherspoon and Selena Gomez had an adorable moment during the Saturday, February 24, SAG Awards. While on the red carpet, the duo hugged and took a moment to gush over one another before they posed for a picture together. The blonde babe, 47, told Gomez, 31, that she loves her new song, “Love On,” which was released on February 22. Of course, people loved seeing the actresses together. One person wrote, “2 icons who have both talent and business,” while another said, “Beautiful.” A third person added, “we understand you Reese, and love you.” The “Single Soon” songstress sp…