Whitney Houston's music has been selling like crazy since the news of her death spread on Saturday night. Her signature song, 'I Will Always Love You,' has risen to the No. 1 spot on Amazon.com's MP3 chart.

The song jumped past current hits 'Sexy and I Know It' by LMFAO and 'Set Fire to the Rain' by Adele to take the top position. Houston holds down several spots on the chart. 'I Wanna Dance With Somebody' and 'Greatest Love of All' both reside in the Top 10. 'How Will I Know' and 'One Moment in Time' also appear in the Top 20, along with another version of 'I Will Always Love You' taken from her greatest hits collection.

We can probably expect more Whitney Houston tracks to move up the digital charts as fans reintroduce themselves to her extensive catalog of hit songs from the past three decades. She won six Grammys in her career and scored 11 No. 1 hits. 'I Will Always Love You' was her biggest hit, topping the charts for a then-record 14 weeks.