Who can tell me how to download the classic songs'lyrics?

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I want to learn some english songs and i have download some songs like "Disney Greatest Love Songs", but i don't know how to find the right lyrics. Can you tell me where to download the lyrics? My friend have a little son and i want to download some children'song for him, and i don't know how to find the right song, can you tell me some? Thank you very much~!