CLINIQUE MAKES MUSIC: Clinique has signed country singer Julie Roberts and pop/R&B singer Rihanna to sing a song that will be used in radio advertising for the brand’s Happy fragrance this fall. The tune, “Just Be Happy,’’ was written by singer/songwriter Ne-Yo. “These girls are the voices of Clinique, not the faces,” said Lynne Greene, global president of Clinique, who noted that the brand partnered with Island/Def Jam records for the effort. “They both sing this song in very distinct and different ways and they will be run as different spots.” The ads are planned for major markets, including New York and Los Angeles. Greene wouldn’t discuss details, but industry sources estimate the brand will spend $3 million on radio advertising this fall. Clinique is also partnering with Sony Connect to offer free downloads and ring tones of the song.