Jennifer Lopez just learned the hard way that you can't trick a master prankster like Ellen DeGeneres. The actress attempted to prank call her pal Ellen as part of the talk show host's new "The Voice . . . on the Phone" segment, using an accent to disguise her voice. It took Ellen less than a minute to figure out who it was, with J Lo's recognizable chuckle ultimately giving away her identity. "I already know who it is by the laugh — it's Jennifer Lopez!" Ellen exclaimed upon realizing it was her longtime friend on the other end of the line. Ellen went on to congratulate Jennifer about her show-stopping performance in Hustlers, which is already garnering well-deserved Oscars buzz, and to address rumors that she's performing at next year's Super Bowl. Watch the clip above to see what J Lo had to say about potentially singing during the coveted halftime show.