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Dream team! Seven years after Katie Couric exited "Today," sources tell Us Weekly she and Matt Lauer are in "actively on-going" talks about partnering again -- on her syndicated talk show Katie.

The pair "think they have great chemistry," an insider says. Lauer could use a fresh start. Continues the insider: "He knows people blame him for 'Today' [show] problems," namely a drop to No. 2 behind "Good Morning America" and the bad PR associated with Ann Curry's 2012 ouster.

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The newsman, 55, first considered leaving NBC to join Couric, 56, in 2011 while renegotiating his contract. ("There were preliminary discussions," a Couric source counters, "but a collaboration just doesn't make sense now." A Lauer source adds, "There is absolutely no truth to this.")

Lauer's $25 million deal is up in 2014, which presents another hurdle: how to pay him a comparable salary. A second insider says Disney-ABC has an incentive: "They want to re-create that old magic."

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For more details on Lauer and Couric's possible reunion, watch this week's Hot Stuff video, as explained by Us Weekly's Deputy Editor Online Justin Ravitz and special guest, "I'm a Star" singer Chrisette Michele.

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Also in the roundup: Selena Gomez's surprising new hookup with Ed Sheeran; Jimmy Kimmel's pre-wedding workout plans; and much more!

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