Please clarify your question if you meant something else, as this text alone isn't a complete sentence or request.
To ensure you have a genuine FLAC (not a transcoded MP3), use: Katy Perry - Teenage Dream -2010- Flac
Stop listening through a straw. Find a legitimate FLAC source, invest in a decent DAC and headphones, and press play. When the opening synth of "Teenage Dream" floods your ears with its full, uncompressed glory, you’ll realize that some dreams—and some digital files—are truly lossless. Please clarify your question if you meant something