Complex sentence: Musically, "Never Gonna Give You Up" is an R&B and pop song whose lyrics delve on themes of love and relationships, a common trait on its parent album.
Split into simpler sentences: Musically, "Never Gonna Give You Up" is an R&B song that incorporates elements of pop music. Lyrically, the recording delves on the themes of love and relationships, a common trait on it's parent album.