Singer Marc Anthony dedicated a song to his wife Jennifer Lopez at the duo's concert at the Staples Center in Los Angeles Friday.

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Anthony and J. Lo. are touring together featuring the music from their new film, "El Cantante."

Anthony dedicated the Journey hit "Faithfully" to Lopez, generating thunderous applause during the line "They say that the road ain't no place to start a family," supporting rumors that Lopez is pregnant.

The song was one of two Anthony sang in English.

Lopez followed Anthony's hour-long set wearing her noticeably loose-fitting clothes and low-heeled boots, prompting one fan to tell People magazine "she's so pregnant!"