Which do they sing to you? Which do you sing to them?

[youtube=https://www.youtube.com/watch?v=fV4DiAyExN0]

[youtube=https://www.youtube.com/watch?v=vbMh38KGZMM]

[youtube=https://www.youtube.com/watch?v=H0H5uFDDi3c]

[youtube=https://www.youtube.com/watch?v=vNQncx4R7U4]

[youtube=https://www.youtube.com/watch?v=ZbHfgXJKn1Y]

[youtube=https://www.youtube.com/watch?v=RToVpMxQydM]

[youtube=https://www.youtube.com/watch?v=vv2DSmy3Tro]

[youtube=https://www.youtube.com/watch?v=Usj-m2c4nyo]

[youtube=https://www.youtube.com/watch?v=rVsMNGuCXtM]

[youtube=https://www.youtube.com/watch?v=RJLkcPhVi9w]

[youtube=https://www.youtube.com/watch?v=6Ux6SlOE9Qk]

[youtube=https://www.youtube.com/watch?v=vwxDtaDBP_I]

[youtube=https://www.youtube.com/watch?v=aCyGvGEtOwc]

[youtube=https://www.youtube.com/watch?v=XleOkGsYgO8]

[youtube=https://www.youtube.com/watch?v=ChYK2aE0znk]

[youtube=https://www.youtube.com/watch?v=dDxgSvJINlU]

[youtube=https://www.youtube.com/watch?v=s1tAYmMjLdY]

[youtube=https://www.youtube.com/watch?v=xJJsoquu70o]

[youtube=https://www.youtube.com/watch?v=D61Qeke6h9I]

[youtube=https://www.youtube.com/watch?v=fgT9zGkiLig]

[youtube=https://www.youtube.com/watch?v=1m4tYUfYCj4]